201202112220 has 48 divisors (see below), whose sum is σ = 570497141760. Its totient is φ = 52974732096.

The previous prime is 201202112203. The next prime is 201202112249. The reversal of 201202112220 is 22211202102.

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 201202112220.

It is a congruent number.

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, 21219112 + ... + 21228591.

It is an arithmetic number, because the mean of its divisors is an integer number (11885357120).

Almost surely, 2^201202112220 is an apocalyptic number.

201202112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201202112220 is an abundant number, since it is smaller than the sum of its proper divisors (369295029540).

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

201202112220 is a wasteful number, since it uses less digits than its factorization.

201202112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42447794 (or 42447792 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201202112220 its reverse (22211202102), we get a palindrome (223413314322).

The spelling of 201202112220 in words is "two hundred one billion, two hundred two million, one hundred twelve thousand, two hundred twenty".