201200121313212 has 96 divisors (see below), whose sum is σ = 563427202931712. Its totient is φ = 54636136828416.

The previous prime is 201200121313211. The next prime is 201200121313229. The reversal of 201200121313212 is 212313121002102.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201200121313211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331355433 + ... + 331962080.

It is an arithmetic number, because the mean of its divisors is an integer number (5869033363872).

Almost surely, 2^{201200121313212} is an apocalyptic number.

It is an amenable number.

201200121313212 is an abundant number, since it is smaller than the sum of its proper divisors (362227081618500).

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

201200121313212 is a wasteful number, since it uses less digits than its factorization.

201200121313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663317707 (or 663317705 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 201200121313212 its reverse (212313121002102), we get a palindrome (413513242315314).

The spelling of 201200121313212 in words is "two hundred one trillion, two hundred billion, one hundred twenty-one million, three hundred thirteen thousand, two hundred twelve".