202021100112100 has 36 divisors (see below), whose sum is σ = 441010851873984. Its totient is φ = 80324557163680.

The previous prime is 202021100112061. The next prime is 202021100112149. The reversal of 202021100112100 is 1211001120202.

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, 6048519232 + ... + 6048552631.

It is an arithmetic number, because the mean of its divisors is an integer number (12250301440944).

Almost surely, 2^{202021100112100} is an apocalyptic number.

202021100112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202021100112100 is an abundant number, since it is smaller than the sum of its proper divisors (238989751761884).

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

202021100112100 is a wasteful number, since it uses less digits than its factorization.

202021100112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12097072044 (or 12097072037 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 202021100112100 its reverse (1211001120202), we get a palindrome (203232101232302).

The spelling of 202021100112100 in words is "two hundred two trillion, twenty-one billion, one hundred million, one hundred twelve thousand, one hundred".