21213302022330 has 64 divisors (see below), whose sum is σ = 57041370384768. Its totient is φ = 5003628975360.

The previous prime is 21213302022323. The next prime is 21213302022343. The reversal of 21213302022330 is 3322020331212.

It is a self number, because there is not a number n which added to its sum of digits gives 21213302022330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 868673377 + ... + 868697796.

It is an arithmetic number, because the mean of its divisors is an integer number (891271412262).

Almost surely, 2^{21213302022330} is an apocalyptic number.

21213302022330 is an abundant number, since it is smaller than the sum of its proper divisors (35828068362438).

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

21213302022330 is a wasteful number, since it uses less digits than its factorization.

21213302022330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737371231.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21213302022330 its reverse (3322020331212), we get a palindrome (24535322353542).

The spelling of 21213302022330 in words is "twenty-one trillion, two hundred thirteen billion, three hundred two million, twenty-two thousand, three hundred thirty".