201112212201212 has 72 divisors (see below), whose sum is σ = 401166978957360. Its totient is φ = 87934103262720.

The previous prime is 201112212201133. The next prime is 201112212201253. The reversal of 201112212201212 is 212102212211102.

It is a super-2 number, since 2×201112212201212² (a number of 29 digits) contains 22 as substring.

It is a congruent 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, 954113912 + ... + 954324672.

It is an arithmetic number, because the mean of its divisors is an integer number (5571763596630).

Almost surely, 2^{201112212201212} is an apocalyptic number.

It is an amenable number.

201112212201212 is a deficient number, since it is larger than the sum of its proper divisors (200054766756148).

201112212201212 is a wasteful number, since it uses less digits than its factorization.

201112212201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285103 (or 285088 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 201112212201212 its reverse (212102212211102), we get a palindrome (413214424412314).

The spelling of 201112212201212 in words is "two hundred one trillion, one hundred twelve billion, two hundred twelve million, two hundred one thousand, two hundred twelve".