22301212320 has 72 divisors (see below), whose sum is σ = 76102891956. Its totient is φ = 5946989568.

The previous prime is 22301212303. The next prime is 22301212337. The reversal of 22301212320 is 2321210322.

22301212320 is a `hidden beast` number, since 22 + 301 + 21 + 2 + 320 = 666.

It is an interprime number because it is at equal distance from previous prime (22301212303) and next prime (22301212337).

It can be written as a sum of positive squares in 2 ways, for example, as 22216498704 + 84713616 = 149052^2 + 9204^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22301212293 and 22301212302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7742037 + ... + 7744916.

Almost surely, 2^22301212320 is an apocalyptic number.

22301212320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22301212320 is an abundant number, since it is smaller than the sum of its proper divisors (53801679636).

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

22301212320 is a wasteful number, since it uses less digits than its factorization.

22301212320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15486974 (or 15486963 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22301212320 its reverse (2321210322), we get a palindrome (24622422642).

The spelling of 22301212320 in words is "twenty-two billion, three hundred one million, two hundred twelve thousand, three hundred twenty".