201111021111112 has 24 divisors (see below), whose sum is σ = 438647762883510. Its totient is φ = 86190437618880.

The previous prime is 201111021111073. The next prime is 201111021111139. The reversal of 201111021111112 is 211111120111102.

It can be written as a sum of positive squares in only one way, i.e., 172104330273316 + 29006690837796 = 13118854^2 + 5385786^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 256519159189 + ... + 256519159972.

Almost surely, 2^{201111021111112} is an apocalyptic number.

It is an amenable number.

201111021111112 is an abundant number, since it is smaller than the sum of its proper divisors (237536741772398).

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

201111021111112 is a wasteful number, since it uses less digits than its factorization.

201111021111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513038319181 (or 513038319170 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 201111021111112 its reverse (211111120111102), we get a palindrome (412222141222214).

The spelling of 201111021111112 in words is "two hundred one trillion, one hundred eleven billion, twenty-one million, one hundred eleven thousand, one hundred twelve".