201220212200 has 48 divisors (see below), whose sum is σ = 534670853280. Its totient is φ = 68989786560.

The previous prime is 201220212191. The next prime is 201220212233. The reversal of 201220212200 is 2212022102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71862962 + ... + 71865761.

It is an arithmetic number, because the mean of its divisors is an integer number (11138976110).

Almost surely, 2^201220212200 is an apocalyptic number.

201220212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201220212200 is an abundant number, since it is smaller than the sum of its proper divisors (333450641080).

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

201220212200 is a wasteful number, since it uses less digits than its factorization.

201220212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143728746 (or 143728737 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 201220212200 its reverse (2212022102), we get a palindrome (203432234302).

The spelling of 201220212200 in words is "two hundred one billion, two hundred twenty million, two hundred twelve thousand, two hundred".