202201022221220 has 48 divisors (see below), whose sum is σ = 463291190562816. Its totient is φ = 73517004672000.

The previous prime is 202201022221213. The next prime is 202201022221229. The reversal of 202201022221220 is 22122220102202.

202201022221220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 202201022221192 and 202201022221201.

It is not an unprimeable number, because it can be changed into a prime (202201022221229) 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, 64974701 + ... + 68015540.

It is an arithmetic number, because the mean of its divisors is an integer number (9651899803392).

Almost surely, 2^{202201022221220} is an apocalyptic number.

202201022221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202201022221220 is an abundant number, since it is smaller than the sum of its proper divisors (261090168341596).

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

202201022221220 is a wasteful number, since it uses less digits than its factorization.

202201022221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132997172 (or 132997170 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 202201022221220 its reverse (22122220102202), we get a palindrome (224323242323422).

The spelling of 202201022221220 in words is "two hundred two trillion, two hundred one billion, twenty-two million, two hundred twenty-one thousand, two hundred twenty".