213122131322 has 16 divisors (see below), whose sum is σ = 330030547200. Its totient is φ = 103112677920.

The previous prime is 213122131273. The next prime is 213122131399. The reversal of 213122131322 is 223131221312.

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, 423329 + ... + 778107.

It is an arithmetic number, because the mean of its divisors is an integer number (20626909200).

Almost surely, 2^213122131322 is an apocalyptic number.

213122131322 is a deficient number, since it is larger than the sum of its proper divisors (116908415878).

213122131322 is a wasteful number, since it uses less digits than its factorization.

213122131322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364501.

The product of its digits is 864, while the sum is 23.

Adding to 213122131322 its reverse (223131221312), we get a palindrome (436253352634).

The spelling of 213122131322 in words is "two hundred thirteen billion, one hundred twenty-two million, one hundred thirty-one thousand, three hundred twenty-two".