2102120210112 has 56 divisors (see below), whose sum is σ = 5989695092976. Its totient is φ = 646806217728.

The previous prime is 2102120210107. The next prime is 2102120210123. The reversal of 2102120210112 is 2110120212012.

It is a super-2 number, since 2×2102120210112² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2102120210091 and 2102120210100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421095303 + ... + 421100294.

It is an arithmetic number, because the mean of its divisors is an integer number (106958840946).

Almost surely, 2^{2102120210112} is an apocalyptic number.

It is an amenable number.

2102120210112 is an abundant number, since it is smaller than the sum of its proper divisors (3887574882864).

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

2102120210112 is a wasteful number, since it uses less digits than its factorization.

2102120210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842195625 (or 842195615 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2102120210112 its reverse (2110120212012), we get a palindrome (4212240422124).

The spelling of 2102120210112 in words is "two trillion, one hundred two billion, one hundred twenty million, two hundred ten thousand, one hundred twelve".