213231001220022 has 128 divisors (see below), whose sum is σ = 493573444531200. Its totient is φ = 60957142880256.

The previous prime is 213231001219991. The next prime is 213231001220033. The reversal of 213231001220022 is 220022100132312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7568178 + ... + 21994074.

It is an arithmetic number, because the mean of its divisors is an integer number (3856042535400).

Almost surely, 2^{213231001220022} is an apocalyptic number.

213231001220022 is an abundant number, since it is smaller than the sum of its proper divisors (280342443311178).

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

213231001220022 is a wasteful number, since it uses less digits than its factorization.

213231001220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14426230.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 213231001220022 its reverse (220022100132312), we get a palindrome (433253101352334).

The spelling of 213231001220022 in words is "two hundred thirteen trillion, two hundred thirty-one billion, one million, two hundred twenty thousand, twenty-two".