201122110122012 has 120 divisors (see below), whose sum is σ = 562518055724240. Its totient is φ = 62471060835840.

The previous prime is 201122110121981. The next prime is 201122110122071. The reversal of 201122110122012 is 210221011221102.

201122110122012 is a `hidden beast` number, since 201 + 1 + 221 + 10 + 1 + 220 + 12 = 666.

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 39 ways as a sum of consecutive naturals, for example, 267418813 + ... + 268169844.

Almost surely, 2^{201122110122012} is an apocalyptic number.

It is an amenable number.

201122110122012 is an abundant number, since it is smaller than the sum of its proper divisors (361395945602228).

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

201122110122012 is a wasteful number, since it uses less digits than its factorization.

201122110122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535588753 (or 535588742 counting only the distinct ones).

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

Adding to 201122110122012 its reverse (210221011221102), we get a palindrome (411343121343114).

The spelling of 201122110122012 in words is "two hundred one trillion, one hundred twenty-two billion, one hundred ten million, one hundred twenty-two thousand, twelve".