912101881 has 16 divisors (see below), whose sum is σ = 967127040. Its totient is φ = 858786880.

The previous prime is 912101851. The next prime is 912101891. The reversal of 912101881 is 188101219.

It is a cyclic number.

It is not a de Polignac number, because 912101881 - 2⁵ = 912101849 is a prime.

It is a super-2 number, since 2×912101881² = 1663859682647476322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (912101831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431016 + ... + 433126.

It is an arithmetic number, because the mean of its divisors is an integer number (60445440).

Almost surely, 2^912101881 is an apocalyptic number.

It is an amenable number.

912101881 is a deficient number, since it is larger than the sum of its proper divisors (55025159).

912101881 is a wasteful number, since it uses less digits than its factorization.

912101881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504.

The product of its (nonzero) digits is 1152, while the sum is 31.

The square root of 912101881 is about 30201.0245024900. The cubic root of 912101881 is about 969.7976270343.

The spelling of 912101881 in words is "nine hundred twelve million, one hundred one thousand, eight hundred eighty-one".