201212112013 has 32 divisors (see below), whose sum is σ = 234659213568. Its totient is φ = 170505753600.

The previous prime is 201212111977. The next prime is 201212112041. The reversal of 201212112013 is 310211212102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201212112013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201212112043) 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, 9119631 + ... + 9141667.

It is an arithmetic number, because the mean of its divisors is an integer number (7333100424).

Almost surely, 2^201212112013 is an apocalyptic number.

It is an amenable number.

201212112013 is a deficient number, since it is larger than the sum of its proper divisors (33447101555).

201212112013 is a wasteful number, since it uses less digits than its factorization.

201212112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22533.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 201212112013 its reverse (310211212102), we get a palindrome (511423324115).

The spelling of 201212112013 in words is "two hundred one billion, two hundred twelve million, one hundred twelve thousand, thirteen".