912111202121 has 12 divisors (see below), whose sum is σ = 1061740937088. Its totient is φ = 781283776392.

The previous prime is 912111202069. The next prime is 912111202139. The reversal of 912111202121 is 121202111219.

It is a happy number.

It is not a de Polignac number, because 912111202121 - 2³⁴ = 894931332937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (912111201121) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6186221 + ... + 6331946.

It is an arithmetic number, because the mean of its divisors is an integer number (88478411424).

Almost surely, 2^912111202121 is an apocalyptic number.

It is an amenable number.

912111202121 is a deficient number, since it is larger than the sum of its proper divisors (149629734967).

912111202121 is a wasteful number, since it uses less digits than its factorization.

912111202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12519668 (or 12519661 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 912111202121 in words is "nine hundred twelve billion, one hundred eleven million, two hundred two thousand, one hundred twenty-one".