201021222010200 has 96 divisors (see below), whose sum is σ = 627648995601600. Its totient is φ = 53220006956160.

The previous prime is 201021222010123. The next prime is 201021222010229. The reversal of 201021222010200 is 2010222120102.

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 201021222010200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1205079802 + ... + 1205246601.

It is an arithmetic number, because the mean of its divisors is an integer number (6538010370850).

Almost surely, 2^{201021222010200} is an apocalyptic number.

201021222010200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201021222010200 is an abundant number, since it is smaller than the sum of its proper divisors (426627773591400).

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

201021222010200 is a wasteful number, since it uses less digits than its factorization.

201021222010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410326561 (or 2410326552 counting only the distinct ones).

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

Adding to 201021222010200 its reverse (2010222120102), we get a palindrome (203031444130302).

The spelling of 201021222010200 in words is "two hundred one trillion, twenty-one billion, two hundred twenty-two million, ten thousand, two hundred".