31223320022122 has 32 divisors (see below), whose sum is σ = 47238222608640. Its totient is φ = 15477572248320.

The previous prime is 31223320022119. The next prime is 31223320022131. The reversal of 31223320022122 is 22122002332213.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 909938838 + ... + 909973150.

It is an arithmetic number, because the mean of its divisors is an integer number (1476194456520).

Almost surely, 2^{31223320022122} is an apocalyptic number.

31223320022122 is a deficient number, since it is larger than the sum of its proper divisors (16014902586518).

31223320022122 is a wasteful number, since it uses less digits than its factorization.

31223320022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38958.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31223320022122 its reverse (22122002332213), we get a palindrome (53345322354335).

The spelling of 31223320022122 in words is "thirty-one trillion, two hundred twenty-three billion, three hundred twenty million, twenty-two thousand, one hundred twenty-two".