202221200000220 has 48 divisors (see below), whose sum is σ = 570292880599680. Its totient is φ = 53537698990656.

The previous prime is 202221200000173. The next prime is 202221200000221. The reversal of 202221200000220 is 22000002122202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202221200000220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202221200000221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12123564802 + ... + 12123581481.

It is an arithmetic number, because the mean of its divisors is an integer number (11881101679160).

Almost surely, 2^{202221200000220} is an apocalyptic number.

202221200000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202221200000220 is an abundant number, since it is smaller than the sum of its proper divisors (368071680599460).

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

202221200000220 is a wasteful number, since it uses less digits than its factorization.

202221200000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24247146434 (or 24247146432 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 202221200000220 its reverse (22000002122202), we get a palindrome (224221202122422).

The spelling of 202221200000220 in words is "two hundred two trillion, two hundred twenty-one billion, two hundred million, two hundred twenty", and thus it is an aban number.