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1220103210212 = 222232835219277
BaseRepresentation
bin10001110000010011110…
…100011000010011100100
311022122022002110000000122
4101300103310120103210
5124442232410211322
62332301354101112
7154102203112235
oct21602364302344
94278262400018
101220103210212
114304964aa507
1217856a11a798
138b09448b373
14430a63d908c
1521b0ea42442
hex11c13d184e4

1220103210212 has 48 divisors (see below), whose sum is σ = 2156697672192. Its totient is φ = 603943292160.

The previous prime is 1220103210199. The next prime is 1220103210217. The reversal of 1220103210212 is 2120123010221.

It is a super-2 number, since 2×12201032102122 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220103210217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131514518 + ... + 131523794.

It is an arithmetic number, because the mean of its divisors is an integer number (44931201504).

Almost surely, 21220103210212 is an apocalyptic number.

It is an amenable number.

1220103210212 is a deficient number, since it is larger than the sum of its proper divisors (936594461980).

1220103210212 is a wasteful number, since it uses less digits than its factorization.

1220103210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10308 (or 10306 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1220103210212 its reverse (2120123010221), we get a palindrome (3340226220433).

The spelling of 1220103210212 in words is "one trillion, two hundred twenty billion, one hundred three million, two hundred ten thousand, two hundred twelve".

Divisors: 1 2 4 223 283 446 521 566 892 1042 1132 2084 9277 18554 37108 63109 116183 126218 147443 232366 252436 294886 464732 589772 2068771 2625391 4137542 4833317 5250782 8275084 9666634 10501564 19333268 32879789 65759578 131519156 585462193 1077829691 1170924386 1367828711 2155659382 2341848772 2735657422 4311318764 5471314844 305025802553 610051605106 1220103210212