22131332013 has 24 divisors (see below), whose sum is σ = 34356809280. Its totient is φ = 12635179200.

The previous prime is 22131331979. The next prime is 22131332077. The reversal of 22131332013 is 31023313122.

It is not a de Polignac number, because 22131332013 - 2⁶ = 22131331949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131332213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99288 + ... + 232638.

It is an arithmetic number, because the mean of its divisors is an integer number (1431533720).

Almost surely, 2^22131332013 is an apocalyptic number.

It is an amenable number.

22131332013 is a deficient number, since it is larger than the sum of its proper divisors (12225477267).

22131332013 is a wasteful number, since it uses less digits than its factorization.

22131332013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134497 (or 134490 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 22131332013 its reverse (31023313122), we get a palindrome (53154645135).

The spelling of 22131332013 in words is "twenty-two billion, one hundred thirty-one million, three hundred thirty-two thousand, thirteen".