912012100121 has 4 divisors (see below), whose sum is σ = 912148656000. Its totient is φ = 911875544244.

The previous prime is 912012100091. The next prime is 912012100147. The reversal of 912012100121 is 121001210219.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 912012100121 - 2²² = 912007905817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 912012100093 and 912012100102.

It is not an unprimeable number, because it can be changed into a prime (912012100171) 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, 68267921 + ... + 68281278.

It is an arithmetic number, because the mean of its divisors is an integer number (228037164000).

Almost surely, 2^912012100121 is an apocalyptic number.

It is an amenable number.

912012100121 is a deficient number, since it is larger than the sum of its proper divisors (136555879).

912012100121 is a wasteful number, since it uses less digits than its factorization.

912012100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136555878.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 912012100121 in words is "nine hundred twelve billion, twelve million, one hundred thousand, one hundred twenty-one".