201211112011112 has 64 divisors (see below), whose sum is σ = 442702983945600. Its totient is φ = 83935785461760.

The previous prime is 201211112011111. The next prime is 201211112011177. The reversal of 201211112011112 is 211110211112102.

It is a super-2 number, since 2×201211112011112² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201211112011111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100201562 + ... + 102189897.

It is an arithmetic number, because the mean of its divisors is an integer number (6917234124150).

Almost surely, 2^{201211112011112} is an apocalyptic number.

It is an amenable number.

201211112011112 is an abundant number, since it is smaller than the sum of its proper divisors (241491871934488).

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

201211112011112 is a wasteful number, since it uses less digits than its factorization.

201211112011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202391946 (or 202391942 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 201211112011112 its reverse (211110211112102), we get a palindrome (412321323123214).

The spelling of 201211112011112 in words is "two hundred one trillion, two hundred eleven billion, one hundred twelve million, eleven thousand, one hundred twelve".