201213222221200 has 120 divisors (see below), whose sum is σ = 552481539936192. Its totient is φ = 68986451304960.

The previous prime is 201213222221161. The next prime is 201213222221257. The reversal of 201213222221200 is 2122222312102.

It is a happy 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, 223542447 + ... + 224440753.

Almost surely, 2^{201213222221200} is an apocalyptic number.

201213222221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201213222221200 is an abundant number, since it is smaller than the sum of its proper divisors (351268317714992).

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

201213222221200 is a wasteful number, since it uses less digits than its factorization.

201213222221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978329 (or 978318 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 201213222221200 its reverse (2122222312102), we get a palindrome (203335444533302).

The spelling of 201213222221200 in words is "two hundred one trillion, two hundred thirteen billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred".