212331231200 has 72 divisors (see below), whose sum is σ = 565476697800. Its totient is φ = 77211353600.

The previous prime is 212331231199. The next prime is 212331231239. The reversal of 212331231200 is 2132133212.

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

It is a congruent number.

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, 12055475 + ... + 12073074.

It is an arithmetic number, because the mean of its divisors is an integer number (7853843025).

Almost surely, 2^212331231200 is an apocalyptic number.

212331231200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212331231200 is an abundant number, since it is smaller than the sum of its proper divisors (353145466600).

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

212331231200 is a wasteful number, since it uses less digits than its factorization.

212331231200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24128580 (or 24128567 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212331231200 its reverse (2132133212), we get a palindrome (214463364412).

It can be divided in two parts, 2123312 and 31200, that added together give a palindrome (2154512).

The spelling of 212331231200 in words is "two hundred twelve billion, three hundred thirty-one million, two hundred thirty-one thousand, two hundred".