202000101020100 has 54 divisors (see below), whose sum is σ = 633158094422490. Its totient is φ = 53866693605120.

The previous prime is 202000101020051. The next prime is 202000101020117. The reversal of 202000101020100 is 1020101000202.

It can be written as a sum of positive squares in 3 ways, for example, as 24234038604864 + 177766062415236 = 4922808^2 + 13332894^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 112222277445 + ... + 112222279244.

Almost surely, 2^{202000101020100} is an apocalyptic number.

202000101020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202000101020100 is an abundant number, since it is smaller than the sum of its proper divisors (431157993402390).

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

202000101020100 is a wasteful number, since it uses less digits than its factorization.

202000101020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224444556709 (or 224444556699 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 202000101020100 its reverse (1020101000202), we get a palindrome (203020202020302).

The spelling of 202000101020100 in words is "two hundred two trillion, one hundred one million, twenty thousand, one hundred".