331000020122 has 16 divisors (see below), whose sum is σ = 504314282952. Its totient is φ = 162914203200.

The previous prime is 331000020121. The next prime is 331000020139. The reversal of 331000020122 is 221020000133.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 320583572401 + 10416447721 = 566201^2 + 102061^2 .

It is a super-2 number, since 2×331000020122² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331000020097 and 331000020106.

It is not an unprimeable number, because it can be changed into a prime (331000020121) 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, 4700933 + ... + 4770824.

Almost surely, 2^331000020122 is an apocalyptic number.

331000020122 is a deficient number, since it is larger than the sum of its proper divisors (173314262830).

331000020122 is a wasteful number, since it uses less digits than its factorization.

331000020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9472033.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 331000020122 its reverse (221020000133), we get a palindrome (552020020255).

The spelling of 331000020122 in words is "three hundred thirty-one billion, twenty thousand, one hundred twenty-two".