22151011313532 has 12 divisors (see below), whose sum is σ = 51685693064936. Its totient is φ = 7383670437840.

The previous prime is 22151011313531. The next prime is 22151011313537. The reversal of 22151011313532 is 23531311015122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 22151011313532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22151011313531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922958804719 + ... + 922958804742.

Almost surely, 2^{22151011313532} is an apocalyptic number.

It is an amenable number.

22151011313532 is an abundant number, since it is smaller than the sum of its proper divisors (29534681751404).

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

22151011313532 is a wasteful number, since it uses less digits than its factorization.

22151011313532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845917609468 (or 1845917609466 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 22151011313532 its reverse (23531311015122), we get a palindrome (45682322328654).

The spelling of 22151011313532 in words is "twenty-two trillion, one hundred fifty-one billion, eleven million, three hundred thirteen thousand, five hundred thirty-two".