22012300320 has 96 divisors (see below), whose sum is σ = 69384325248. Its totient is φ = 5866088448.

The previous prime is 22012300309. The next prime is 22012300357. The reversal of 22012300320 is 2300321022.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22012300320.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 757092 + ... + 785628.

It is an arithmetic number, because the mean of its divisors is an integer number (722753388).

Almost surely, 2^22012300320 is an apocalyptic number.

22012300320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012300320 is an abundant number, since it is smaller than the sum of its proper divisors (47372024928).

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

22012300320 is a wasteful number, since it uses less digits than its factorization.

22012300320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30162 (or 30154 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 22012300320 its reverse (2300321022), we get a palindrome (24312621342).

The spelling of 22012300320 in words is "twenty-two billion, twelve million, three hundred thousand, three hundred twenty".