23212333100 has 144 divisors (see below), whose sum is σ = 56499717120. Its totient is φ = 8204716800.

The previous prime is 23212333093. The next prime is 23212333201. The reversal of 23212333100 is 133321232.

It is a super-2 number, since 2×23212333100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10830629 + ... + 10832771.

Almost surely, 2^23212333100 is an apocalyptic number.

23212333100 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 23212333100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28249858560).

23212333100 is an abundant number, since it is smaller than the sum of its proper divisors (33287384020).

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

23212333100 is a wasteful number, since it uses less digits than its factorization.

23212333100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440 (or 2433 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23212333100 its reverse (133321232), we get a palindrome (23345654332).

The spelling of 23212333100 in words is "twenty-three billion, two hundred twelve million, three hundred thirty-three thousand, one hundred".