22532941821 has 16 divisors (see below), whose sum is σ = 33398704640. Its totient is φ = 13419120960.

The previous prime is 22532941819. The next prime is 22532941859. The reversal of 22532941821 is 12814923522.

It is not a de Polignac number, because 22532941821 - 2¹ = 22532941819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22532941821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22532941811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9317626 + ... + 9320043.

It is an arithmetic number, because the mean of its divisors is an integer number (2087419040).

Almost surely, 2^22532941821 is an apocalyptic number.

It is an amenable number.

22532941821 is a deficient number, since it is larger than the sum of its proper divisors (10865762819).

22532941821 is a wasteful number, since it uses less digits than its factorization.

22532941821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18637716.

The product of its digits is 69120, while the sum is 39.

The spelling of 22532941821 in words is "twenty-two billion, five hundred thirty-two million, nine hundred forty-one thousand, eight hundred twenty-one".