21230231132200 has 96 divisors (see below), whose sum is σ = 51873288334560. Its totient is φ = 8070423379200.

The previous prime is 21230231132177. The next prime is 21230231132239. The reversal of 21230231132200 is 223113203212.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33041686 + ... + 33678085.

It is an arithmetic number, because the mean of its divisors is an integer number (540346753485).

Almost surely, 2^{21230231132200} is an apocalyptic number.

21230231132200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21230231132200 is an abundant number, since it is smaller than the sum of its proper divisors (30643057202360).

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

21230231132200 is a wasteful number, since it uses less digits than its factorization.

21230231132200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66719867 (or 66719858 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21230231132200 its reverse (223113203212), we get a palindrome (21453344335412).

The spelling of 21230231132200 in words is "twenty-one trillion, two hundred thirty billion, two hundred thirty-one million, one hundred thirty-two thousand, two hundred".