23212211200 has 66 divisors (see below), whose sum is σ = 57538238696. Its totient is φ = 9284874240.

The previous prime is 23212211177. The next prime is 23212211201. The reversal of 23212211200 is 211221232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212211201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 427764 + ... + 478963.

Almost surely, 2^23212211200 is an apocalyptic number.

23212211200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23212211200 is an abundant number, since it is smaller than the sum of its proper divisors (34326027496).

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

23212211200 is an equidigital number, since it uses as much as digits as its factorization.

23212211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906757 (or 906734 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 23212211200 its reverse (211221232), we get a palindrome (23423432432).

The spelling of 23212211200 in words is "twenty-three billion, two hundred twelve million, two hundred eleven thousand, two hundred".