22013231232220 has 12 divisors (see below), whose sum is σ = 46227785587704. Its totient is φ = 8805292492880.

The previous prime is 22013231232133. The next prime is 22013231232241. The reversal of 22013231232220 is 2223213231022.

It is a super-2 number, since 2×22013231232220² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550330780786 + ... + 550330780825.

It is an arithmetic number, because the mean of its divisors is an integer number (3852315465642).

Almost surely, 2^{22013231232220} is an apocalyptic number.

22013231232220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22013231232220 is an abundant number, since it is smaller than the sum of its proper divisors (24214554355484).

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

22013231232220 is a wasteful number, since it uses less digits than its factorization.

22013231232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100661561620 (or 1100661561618 counting only the distinct ones).

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

Adding to 22013231232220 its reverse (2223213231022), we get a palindrome (24236444463242).

The spelling of 22013231232220 in words is "twenty-two trillion, thirteen billion, two hundred thirty-one million, two hundred thirty-two thousand, two hundred twenty".