22131343532 has 6 divisors (see below), whose sum is σ = 38729851188. Its totient is φ = 11065671764.

The previous prime is 22131343523. The next prime is 22131343601. The reversal of 22131343532 is 23534313122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22131343495 and 22131343504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2766417938 + ... + 2766417945.

It is an arithmetic number, because the mean of its divisors is an integer number (6454975198).

Almost surely, 2^22131343532 is an apocalyptic number.

It is an amenable number.

22131343532 is a deficient number, since it is larger than the sum of its proper divisors (16598507656).

22131343532 is a wasteful number, since it uses less digits than its factorization.

22131343532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5532835887 (or 5532835885 counting only the distinct ones).

The product of its digits is 12960, while the sum is 29.

Adding to 22131343532 its reverse (23534313122), we get a palindrome (45665656654).

The spelling of 22131343532 in words is "twenty-two billion, one hundred thirty-one million, three hundred forty-three thousand, five hundred thirty-two".