202201100 has 18 divisors (see below), whose sum is σ = 438776604. Its totient is φ = 80880400.

The previous prime is 202201099. The next prime is 202201123. The reversal of 202201100 is 1102202.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1010906 + ... + 1011105.

It is an arithmetic number, because the mean of its divisors is an integer number (24376478).

Almost surely, 2^202201100 is an apocalyptic number.

202201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202201100 is an abundant number, since it is smaller than the sum of its proper divisors (236575504).

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

202201100 is a wasteful number, since it uses less digits than its factorization.

202201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022025 (or 2022018 counting only the distinct ones).

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

The square root of 202201100 is about 14219.7433169520. The cubic root of 202201100 is about 586.9410770036.

Adding to 202201100 its reverse (1102202), we get a palindrome (203303302).

The spelling of 202201100 in words is "two hundred two million, two hundred one thousand, one hundred".