912122120200121 has 8 divisors (see below), whose sum is σ = 965934349974504. Its totient is φ = 858327444582400.

The previous prime is 912122120199971. The next prime is 912122120200139. The reversal of 912122120200121 is 121002021221219.

It can be written as a sum of positive squares in 4 ways, for example, as 348872764434496 + 563249355765625 = 18678136^2 + 23732875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-912122120200121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (912122120200171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4388432180 + ... + 4388640021.

It is an arithmetic number, because the mean of its divisors is an integer number (120741793746813).

Almost surely, 2^{912122120200121} is an apocalyptic number.

It is an amenable number.

912122120200121 is a deficient number, since it is larger than the sum of its proper divisors (53812229774383).

912122120200121 is a wasteful number, since it uses less digits than its factorization.

912122120200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8777078331.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 912122120200121 in words is "nine hundred twelve trillion, one hundred twenty-two billion, one hundred twenty million, two hundred thousand, one hundred twenty-one".