201201112201212 has 36 divisors (see below), whose sum is σ = 508595641870680. Its totient is φ = 67066517631072.

The previous prime is 201201112201181. The next prime is 201201112201319. The reversal of 201201112201212 is 212102211102102.

201201112201212 is a `hidden beast` number, since 2 + 0 + 120 + 111 + 220 + 1 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent 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, 16933263 + ... + 26251430.

It is an arithmetic number, because the mean of its divisors is an integer number (14127656718630).

Almost surely, 2^{201201112201212} is an apocalyptic number.

It is an amenable number.

201201112201212 is an abundant number, since it is smaller than the sum of its proper divisors (307394529669468).

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

201201112201212 is a wasteful number, since it uses less digits than its factorization.

201201112201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43314122 (or 43314117 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201201112201212 its reverse (212102211102102), we get a palindrome (413303323303314).

The spelling of 201201112201212 in words is "two hundred one trillion, two hundred one billion, one hundred twelve million, two hundred one thousand, two hundred twelve".