331131320021122 has 32 divisors (see below), whose sum is σ = 537026449884480. Its totient is φ = 152596316767680.

The previous prime is 331131320021107. The next prime is 331131320021137. The reversal of 331131320021122 is 221120023131133.

It is an interprime number because it is at equal distance from previous prime (331131320021107) and next prime (331131320021137).

It is a super-2 number, since 2×331131320021122² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 871972 + ... + 25749232.

It is an arithmetic number, because the mean of its divisors is an integer number (16782076558890).

Almost surely, 2^{331131320021122} is an apocalyptic number.

331131320021122 is a deficient number, since it is larger than the sum of its proper divisors (205895129863358).

331131320021122 is a wasteful number, since it uses less digits than its factorization.

331131320021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24886786.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 331131320021122 its reverse (221120023131133), we get a palindrome (552251343152255).

The spelling of 331131320021122 in words is "three hundred thirty-one trillion, one hundred thirty-one billion, three hundred twenty million, twenty-one thousand, one hundred twenty-two".