31110220231122 has 16 divisors (see below), whose sum is σ = 62224704940032. Its totient is φ = 10369362664080.

The previous prime is 31110220231067. The next prime is 31110220231157. The reversal of 31110220231122 is 22113202201113.

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, 177591733 + ... + 177766824.

It is an arithmetic number, because the mean of its divisors is an integer number (3889044058752).

Almost surely, 2^{31110220231122} is an apocalyptic number.

31110220231122 is an abundant number, since it is smaller than the sum of its proper divisors (31114484708910).

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

31110220231122 is a wasteful number, since it uses less digits than its factorization.

31110220231122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355373153.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 31110220231122 its reverse (22113202201113), we get a palindrome (53223422432235).

The spelling of 31110220231122 in words is "thirty-one trillion, one hundred ten billion, two hundred twenty million, two hundred thirty-one thousand, one hundred twenty-two".