20321212312200 has 96 divisors (see below), whose sum is σ = 63858713896800. Its totient is φ = 5344757199360.

The previous prime is 20321212312183. The next prime is 20321212312213. The reversal of 20321212312200 is 221321212302.

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, 231933510 + ... + 232021109.

It is an arithmetic number, because the mean of its divisors is an integer number (665194936425).

Almost surely, 2^{20321212312200} is an apocalyptic number.

20321212312200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20321212312200 is an abundant number, since it is smaller than the sum of its proper divisors (43537501584600).

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

20321212312200 is a wasteful number, since it uses less digits than its factorization.

20321212312200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463954711 (or 463954702 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20321212312200 its reverse (221321212302), we get a palindrome (20542533524502).

The spelling of 20321212312200 in words is "twenty trillion, three hundred twenty-one billion, two hundred twelve million, three hundred twelve thousand, two hundred".