22013133121 has 4 divisors (see below), whose sum is σ = 25157866432. Its totient is φ = 18868399812.

The previous prime is 22013133073. The next prime is 22013133133. The reversal of 22013133121 is 12133131022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22013133121 - 2¹¹ = 22013131073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22013133161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572366645 + ... + 1572366658.

It is an arithmetic number, because the mean of its divisors is an integer number (6289466608).

Almost surely, 2^22013133121 is an apocalyptic number.

It is an amenable number.

22013133121 is a deficient number, since it is larger than the sum of its proper divisors (3144733311).

22013133121 is an equidigital number, since it uses as much as digits as its factorization.

22013133121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144733310.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 22013133121 its reverse (12133131022), we get a palindrome (34146264143).

The spelling of 22013133121 in words is "twenty-two billion, thirteen million, one hundred thirty-three thousand, one hundred twenty-one".