3121200312122 has 16 divisors (see below), whose sum is σ = 4946531522400. Its totient is φ = 1472967154800.

The previous prime is 3121200312079. The next prime is 3121200312143. The reversal of 3121200312122 is 2212130021213.

It is a junction number, because it is equal to n+sod(n) for n = 3121200312094 and 3121200312103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152660504 + ... + 152680947.

It is an arithmetic number, because the mean of its divisors is an integer number (309158220150).

Almost surely, 2^{3121200312122} is an apocalyptic number.

3121200312122 is a deficient number, since it is larger than the sum of its proper divisors (1825331210278).

3121200312122 is a wasteful number, since it uses less digits than its factorization.

3121200312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305341741.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 3121200312122 its reverse (2212130021213), we get a palindrome (5333330333335).

The spelling of 3121200312122 in words is "three trillion, one hundred twenty-one billion, two hundred million, three hundred twelve thousand, one hundred twenty-two".