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1220210012010 = 2351117271180231
BaseRepresentation
bin10001110000011010001…
…011110010111101101010
311022122120112102002112210
4101300122023302331222
5124442442230341020
62332320131145550
7154104640653603
oct21603213627552
94278515362483
101220210012010
11430540817260
12178599a452b6
138b0b0643ab2
14430b667adaa
1521b190dc3e0
hex11c1a2f2f6a

1220210012010 has 128 divisors (see below), whose sum is σ = 3383946989568. Its totient is φ = 278301824000.

The previous prime is 1220210012009. The next prime is 1220210012033. The reversal of 1220210012010 is 102100120221.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15168595 + ... + 15248825.

It is an arithmetic number, because the mean of its divisors is an integer number (26437085856).

Almost surely, 21220210012010 is an apocalyptic number.

1220210012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220210012010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1691973494784).

1220210012010 is an abundant number, since it is smaller than the sum of its proper divisors (2163736977558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220210012010 is a wasteful number, since it uses less digits than its factorization.

1220210012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82980.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1220210012010 its reverse (102100120221), we get a palindrome (1322310132231).

The spelling of 1220210012010 in words is "one trillion, two hundred twenty billion, two hundred ten million, twelve thousand, ten".

Divisors: 1 2 3 5 6 10 11 15 17 22 30 33 34 51 55 66 85 102 110 165 170 187 255 330 374 510 561 935 1122 1870 2711 2805 5422 5610 8133 13555 16266 27110 29821 40665 46087 59642 80231 81330 89463 92174 138261 149105 160462 178926 230435 240693 276522 298210 401155 447315 460870 481386 506957 691305 802310 882541 894630 1013914 1203465 1363927 1382610 1520871 1765082 2406930 2534785 2647623 2727854 3041742 4091781 4412705 5069570 5295246 6819635 7604355 8183562 8825410 13238115 13639270 15003197 15208710 20458905 26476230 30006394 40917810 45009591 75015985 90019182 150031970 217506241 225047955 435012482 450095910 652518723 1087531205 1305037446 2175062410 2392568651 3262593615 3697606097 4785137302 6525187230 7177705953 7395212194 11092818291 11962843255 14355411906 18488030485 22185636582 23925686510 35888529765 36976060970 40673667067 55464091455 71777059530 81347334134 110928182910 122021001201 203368335335 244042002402 406736670670 610105006005 1220210012010