31033030021122 has 16 divisors (see below), whose sum is σ = 62377949793600. Its totient is φ = 10292361715152.

The previous prime is 31033030021117. The next prime is 31033030021139. The reversal of 31033030021122 is 22112003033013.

It is a super-2 number, since 2×31033030021122² (a number of 28 digits) contains 22 as substring.

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, 12995405013 + ... + 12995407400.

It is an arithmetic number, because the mean of its divisors is an integer number (3898621862100).

Almost surely, 2^{31033030021122} is an apocalyptic number.

31033030021122 is an abundant number, since it is smaller than the sum of its proper divisors (31344919772478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31033030021122 is a wasteful number, since it uses less digits than its factorization.

31033030021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25990812617.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31033030021122 its reverse (22112003033013), we get a palindrome (53145033054135).

The spelling of 31033030021122 in words is "thirty-one trillion, thirty-three billion, thirty million, twenty-one thousand, one hundred twenty-two".