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1220102111210 = 251955711528887
BaseRepresentation
bin10001110000010011110…
…000001011111111101010
311022122022000101011110212
4101300103300023333222
5124442232120024320
62332301314341122
7154102160554163
oct21602360137752
94278260334425
101220102111210
11430495919844
1217856988a7a2
138b094195078
14430a61d076a
1521b0e8c69c5
hex11c13c0bfea

1220102111210 has 32 divisors (see below), whose sum is σ = 2315923021440. Its totient is φ = 461524364352.

The previous prime is 1220102111201. The next prime is 1220102111213. The reversal of 1220102111210 is 121112010221.

It is not an unprimeable number, because it can be changed into a prime (1220102111213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5658614 + ... + 5870273.

It is an arithmetic number, because the mean of its divisors is an integer number (72372594420).

Almost surely, 21220102111210 is an apocalyptic number.

1220102111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220102111210 is a deficient number, since it is larger than the sum of its proper divisors (1095820910230).

1220102111210 is a wasteful number, since it uses less digits than its factorization.

1220102111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11529470.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220102111210 its reverse (121112010221), we get a palindrome (1341214121431).

The spelling of 1220102111210 in words is "one trillion, two hundred twenty billion, one hundred two million, one hundred eleven thousand, two hundred ten".

Divisors: 1 2 5 10 19 38 95 190 557 1114 2785 5570 10583 21166 52915 105830 11528887 23057774 57644435 115288870 219048853 438097706 1095244265 2190488530 6421590059 12843180118 32107950295 64215900590 122010211121 244020422242 610051055605 1220102111210