2106112152172 has 48 divisors (see below), whose sum is σ = 4225710827520. Its totient is φ = 899730784512.

The previous prime is 2106112152149. The next prime is 2106112152229. The reversal of 2106112152172 is 2712512116012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44353779 + ... + 44401237.

It is an arithmetic number, because the mean of its divisors is an integer number (88035642240).

Almost surely, 2^{2106112152172} is an apocalyptic number.

It is an amenable number.

2106112152172 is an abundant number, since it is smaller than the sum of its proper divisors (2119598675348).

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

2106112152172 is a wasteful number, since it uses less digits than its factorization.

2106112152172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52510 (or 52508 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 31.

Adding to 2106112152172 its reverse (2712512116012), we get a palindrome (4818624268184).

The spelling of 2106112152172 in words is "two trillion, one hundred six billion, one hundred twelve million, one hundred fifty-two thousand, one hundred seventy-two".