2112920910 has 32 divisors (see below), whose sum is σ = 5634456480. Its totient is φ = 563445504.

The previous prime is 2112920903. The next prime is 2112920933. The reversal of 2112920910 is 190292112.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 3912547 + ... + 3913086.

It is an arithmetic number, because the mean of its divisors is an integer number (176076765).

Almost surely, 2^2112920910 is an apocalyptic number.

2112920910 is an abundant number, since it is smaller than the sum of its proper divisors (3521535570).

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

2112920910 is a wasteful number, since it uses less digits than its factorization.

2112920910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7825649 (or 7825643 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 2112920910 is about 45966.5194462230. The cubic root of 2112920910 is about 1283.2001853578.

The spelling of 2112920910 in words is "two billion, one hundred twelve million, nine hundred twenty thousand, nine hundred ten".