22031315552 has 48 divisors (see below), whose sum is σ = 44401996800. Its totient is φ = 10757097600.

The previous prime is 22031315513. The next prime is 22031315591. The reversal of 22031315552 is 25551313022.

It is an interprime number because it is at equal distance from previous prime (22031315513) and next prime (22031315591).

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 246449 + ... + 323727.

It is an arithmetic number, because the mean of its divisors is an integer number (925041600).

Almost surely, 2^22031315552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22031315552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22200998400).

22031315552 is an abundant number, since it is smaller than the sum of its proper divisors (22370681248).

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

22031315552 is a wasteful number, since it uses less digits than its factorization.

22031315552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77499 (or 77491 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 22031315552 its reverse (25551313022), we get a palindrome (47582628574).

The spelling of 22031315552 in words is "twenty-two billion, thirty-one million, three hundred fifteen thousand, five hundred fifty-two".