211100200220 has 96 divisors (see below), whose sum is σ = 554557589376. Its totient is φ = 65714457600.

The previous prime is 211100200193. The next prime is 211100200277. The reversal of 211100200220 is 22002001112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 839711 + ... + 1061750.

It is an arithmetic number, because the mean of its divisors is an integer number (5776641556).

Almost surely, 2^211100200220 is an apocalyptic number.

211100200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211100200220 is an abundant number, since it is smaller than the sum of its proper divisors (343457389156).

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

211100200220 is a wasteful number, since it uses less digits than its factorization.

211100200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901551 (or 1901549 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 211100200220 its reverse (22002001112), we get a palindrome (233102201332).

The spelling of 211100200220 in words is "two hundred eleven billion, one hundred million, two hundred thousand, two hundred twenty".