22323212400 has 60 divisors (see below), whose sum is σ = 71508694232. Its totient is φ = 5952856320.

The previous prime is 22323212393. The next prime is 22323212413. The reversal of 22323212400 is 421232322.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-3 number, since 3×22323212400³ (a number of 32 digits) contains 333 as substring.

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 11 ways as a sum of consecutive naturals, for example, 9300139 + ... + 9302538.

Almost surely, 2^22323212400 is an apocalyptic number.

22323212400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22323212400 is an abundant number, since it is smaller than the sum of its proper divisors (49185481832).

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

22323212400 is a wasteful number, since it uses less digits than its factorization.

22323212400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18602698 (or 18602687 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22323212400 its reverse (421232322), we get a palindrome (22744444722).

The spelling of 22323212400 in words is "twenty-two billion, three hundred twenty-three million, two hundred twelve thousand, four hundred".