23212312200 has 576 divisors, whose sum is σ = 97667856000. Its totient is φ = 4799692800.

The previous prime is 23212312199. The next prime is 23212312243. The reversal of 23212312200 is 221321232.

23212312200 is a `hidden beast` number, since 232 + 1 + 231 + 2 + 200 = 666.

It is a super-2 number, since 2×23212312200² (a number of 22 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 51697576 + ... + 51698024.

It is an arithmetic number, because the mean of its divisors is an integer number (169562250).

Almost surely, 2^23212312200 is an apocalyptic number.

23212312200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23212312200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48833928000).

23212312200 is an abundant number, since it is smaller than the sum of its proper divisors (74455543800).

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

23212312200 is a wasteful number, since it uses less digits than its factorization.

23212312200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 850 counting only the distinct ones).

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

Adding to 23212312200 its reverse (221321232), we get a palindrome (23433633432).

The spelling of 23212312200 in words is "twenty-three billion, two hundred twelve million, three hundred twelve thousand, two hundred".