2201212221200 has 60 divisors (see below), whose sum is σ = 5566749873360. Its totient is φ = 834143575680.

The previous prime is 2201212221157. The next prime is 2201212221211. The reversal of 2201212221200 is 21222121022.

It is a happy number.

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, 144808994 + ... + 144824193.

It is an arithmetic number, because the mean of its divisors is an integer number (92779164556).

Almost surely, 2^{2201212221200} is an apocalyptic number.

2201212221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201212221200 is an abundant number, since it is smaller than the sum of its proper divisors (3365537652160).

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

2201212221200 is a wasteful number, since it uses less digits than its factorization.

2201212221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289633224 (or 289633213 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2201212221200 its reverse (21222121022), we get a palindrome (2222434342222).

The spelling of 2201212221200 in words is "two trillion, two hundred one billion, two hundred twelve million, two hundred twenty-one thousand, two hundred".