22131003342 has 32 divisors (see below), whose sum is σ = 53560749312. Its totient is φ = 5951193984.

The previous prime is 22131003341. The next prime is 22131003347. The reversal of 22131003342 is 24330013122.

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 (22131003341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15497188 + ... + 15498615.

It is an arithmetic number, because the mean of its divisors is an integer number (1673773416).

Almost surely, 2^22131003342 is an apocalyptic number.

22131003342 is an abundant number, since it is smaller than the sum of its proper divisors (31429745970).

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

22131003342 is a wasteful number, since it uses less digits than its factorization.

22131003342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30995832.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22131003342 its reverse (24330013122), we get a palindrome (46461016464).

The spelling of 22131003342 in words is "twenty-two billion, one hundred thirty-one million, three thousand, three hundred forty-two".