912109121 has 16 divisors (see below), whose sum is σ = 1138172928. Its totient is φ = 710110800.

The previous prime is 912109069. The next prime is 912109141. The reversal of 912109121 is 121901219.

It is not a de Polignac number, because 912109121 - 2¹⁰ = 912108097 is a prime.

It is a super-2 number, since 2×912109121² = 1663886097222785282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (912109141) 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, 95786 + ... + 104876.

It is an arithmetic number, because the mean of its divisors is an integer number (71135808).

Almost surely, 2^912109121 is an apocalyptic number.

It is an amenable number.

912109121 is a deficient number, since it is larger than the sum of its proper divisors (226063807).

912109121 is a wasteful number, since it uses less digits than its factorization.

912109121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10412.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 912109121 is about 30201.1443657355. The cubic root of 912109121 is about 969.8001930182.

The spelling of 912109121 in words is "nine hundred twelve million, one hundred nine thousand, one hundred twenty-one".