201112112220111 has 16 divisors (see below), whose sum is σ = 298036370509920. Its totient is φ = 134033116230720.

The previous prime is 201112112220109. The next prime is 201112112220193. The reversal of 201112112220111 is 111022211211102.

It is a happy number.

201112112220111 is a `hidden beast` number, since 201 + 1 + 121 + 12 + 220 + 111 = 666.

It is not a de Polignac number, because 201112112220111 - 2¹ = 201112112220109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112112220311) 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, 1156168350 + ... + 1156342283.

It is an arithmetic number, because the mean of its divisors is an integer number (18627273156870).

Almost surely, 2^{201112112220111} is an apocalyptic number.

201112112220111 is a deficient number, since it is larger than the sum of its proper divisors (96924258289809).

201112112220111 is a wasteful number, since it uses less digits than its factorization.

201112112220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312513863 (or 2312513857 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 201112112220111 its reverse (111022211211102), we get a palindrome (312134323431213).

The spelling of 201112112220111 in words is "two hundred one trillion, one hundred twelve billion, one hundred twelve million, two hundred twenty thousand, one hundred eleven".