202111200220 has 24 divisors (see below), whose sum is σ = 424783475424. Its totient is φ = 80777822016.

The previous prime is 202111200211. The next prime is 202111200223. The reversal of 202111200220 is 22002111202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 202111200220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202111200223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4141264 + ... + 4189783.

It is an arithmetic number, because the mean of its divisors is an integer number (17699311476).

Almost surely, 2^202111200220 is an apocalyptic number.

202111200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202111200220 is an abundant number, since it is smaller than the sum of its proper divisors (222672275204).

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

202111200220 is a wasteful number, since it uses less digits than its factorization.

202111200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8332269 (or 8332267 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202111200220 its reverse (22002111202), we get a palindrome (224113311422).

The spelling of 202111200220 in words is "two hundred two billion, one hundred eleven million, two hundred thousand, two hundred twenty".