331422251200121 has 4 divisors (see below), whose sum is σ = 331533878771700. Its totient is φ = 331310623628544.

The previous prime is 331422251200081. The next prime is 331422251200189. The reversal of 331422251200121 is 121002152224133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41453767171600 + 289968484028521 = 6438460^2 + 17028461^2 .

It is a cyclic number.

It is not a de Polignac number, because 331422251200121 - 2³⁰ = 331421177458297 is a prime.

It is a super-2 number, since 2×331422251200121² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (331422251250121) 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, 55813781336 + ... + 55813787273.

It is an arithmetic number, because the mean of its divisors is an integer number (82883469692925).

Almost surely, 2^{331422251200121} is an apocalyptic number.

It is an amenable number.

331422251200121 is a deficient number, since it is larger than the sum of its proper divisors (111627571579).

331422251200121 is a wasteful number, since it uses less digits than its factorization.

331422251200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111627571578.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 331422251200121 in words is "three hundred thirty-one trillion, four hundred twenty-two billion, two hundred fifty-one million, two hundred thousand, one hundred twenty-one".