201213200220 has 48 divisors (see below), whose sum is σ = 567450199680. Its totient is φ = 53270830656.

The previous prime is 201213200213. The next prime is 201213200263. The reversal of 201213200220 is 22002312102.

It is a happy number.

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 201213200220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12054802 + ... + 12071481.

It is an arithmetic number, because the mean of its divisors is an integer number (11821879160).

Almost surely, 2^201213200220 is an apocalyptic number.

201213200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201213200220 is an abundant number, since it is smaller than the sum of its proper divisors (366236999460).

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

201213200220 is a wasteful number, since it uses less digits than its factorization.

201213200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24126434 (or 24126432 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 201213200220 its reverse (22002312102), we get a palindrome (223215512322).

The spelling of 201213200220 in words is "two hundred one billion, two hundred thirteen million, two hundred thousand, two hundred twenty".