912011121 has 48 divisors (see below), whose sum is σ = 1624281984. Its totient is φ = 481208832.

The previous prime is 912011099. The next prime is 912011137. The reversal of 912011121 is 121110219.

It is a happy number.

It is not a de Polignac number, because 912011121 - 2⁹ = 912010609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 912011094 and 912011103.

It is not an unprimeable number, because it can be changed into a prime (912011161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48730 + ... + 64796.

It is an arithmetic number, because the mean of its divisors is an integer number (33839208).

Almost surely, 2^912011121 is an apocalyptic number.

It is an amenable number.

912011121 is a deficient number, since it is larger than the sum of its proper divisors (712270863).

912011121 is a wasteful number, since it uses less digits than its factorization.

912011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16150 (or 16147 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The square root of 912011121 is about 30199.5218670760. The cubic root of 912011121 is about 969.7654589348.

The spelling of 912011121 in words is "nine hundred twelve million, eleven thousand, one hundred twenty-one".