31112202223122 has 16 divisors (see below), whose sum is σ = 64370073565440. Its totient is φ = 10013122554512.

The previous prime is 31112202223087. The next prime is 31112202223181. The reversal of 31112202223122 is 22132220221113.

It is a junction number, because it is equal to n+sod(n) for n = 31112202223092 and 31112202223101.

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, 89402879778 + ... + 89402880125.

It is an arithmetic number, because the mean of its divisors is an integer number (4023129597840).

Almost surely, 2^{31112202223122} is an apocalyptic number.

31112202223122 is an abundant number, since it is smaller than the sum of its proper divisors (33257871342318).

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

31112202223122 is a wasteful number, since it uses less digits than its factorization.

31112202223122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178805759937.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 31112202223122 its reverse (22132220221113), we get a palindrome (53244422444235).

The spelling of 31112202223122 in words is "thirty-one trillion, one hundred twelve billion, two hundred two million, two hundred twenty-three thousand, one hundred twenty-two".