201211022112102 has 40 divisors (see below), whose sum is σ = 450880312046472. Its totient is φ = 67067577136800.

The previous prime is 201211022112073. The next prime is 201211022112169. The reversal of 201211022112102 is 201211220112102.

201211022112102 is a `hidden beast` number, since 20 + 1 + 211 + 0 + 221 + 1 + 210 + 2 = 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 19 ways as a sum of consecutive naturals, for example, 21642924 + ... + 29509967.

Almost surely, 2^{201211022112102} is an apocalyptic number.

201211022112102 is an abundant number, since it is smaller than the sum of its proper divisors (249669289934370).

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

201211022112102 is a wasteful number, since it uses less digits than its factorization.

201211022112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51177186 (or 51177177 counting only the distinct ones).

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

Adding to 201211022112102 its reverse (201211220112102), we get a palindrome (402422242224204).

The spelling of 201211022112102 in words is "two hundred one trillion, two hundred eleven billion, twenty-two million, one hundred twelve thousand, one hundred two".