102010220999956 has 12 divisors (see below), whose sum is σ = 178538493746592. Its totient is φ = 50999222786648.

The previous prime is 102010220999923. The next prime is 102010220999959. The reversal of 102010220999956 is 659999022010201.

It is a junction number, because it is equal to n+sod(n) for n = 102010220999897 and 102010220999906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102010220999959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1471889350 + ... + 1471958653.

It is an arithmetic number, because the mean of its divisors is an integer number (14878207812216).

Almost surely, 2^{102010220999956} is an apocalyptic number.

It is an amenable number.

102010220999956 is a deficient number, since it is larger than the sum of its proper divisors (76528272746636).

102010220999956 is a wasteful number, since it uses less digits than its factorization.

102010220999956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943856670 (or 2943856668 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 55.

The spelling of 102010220999956 in words is "one hundred two trillion, ten billion, two hundred twenty million, nine hundred ninety-nine thousand, nine hundred fifty-six".