202201220 has 48 divisors (see below), whose sum is σ = 472055808. Its totient is φ = 72247680.

The previous prime is 202201199. The next prime is 202201261. The reversal of 202201220 is 22102202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4484 + ... + 20603.

It is an arithmetic number, because the mean of its divisors is an integer number (9834496).

Almost surely, 2^202201220 is an apocalyptic number.

202201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202201220 is an abundant number, since it is smaller than the sum of its proper divisors (269854588).

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

202201220 is a wasteful number, since it uses less digits than its factorization.

202201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25140 (or 25138 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 202201220 is about 14219.7475364368. The cubic root of 202201220 is about 586.9411931139.

Adding to 202201220 its reverse (22102202), we get a palindrome (224303422).

The spelling of 202201220 in words is "two hundred two million, two hundred one thousand, two hundred twenty".