111112012201 has 4 divisors (see below), whose sum is σ = 111112821072. Its totient is φ = 111111203332.

The previous prime is 111112012199. The next prime is 111112012261. The reversal of 111112012201 is 102210211111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 102210211111 = 1217 ⋅83985383.

It is a cyclic number.

It is not a de Polignac number, because 111112012201 - 2¹ = 111112012199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111112012261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141331 + ... + 492136.

It is an arithmetic number, because the mean of its divisors is an integer number (27778205268).

Almost surely, 2^111112012201 is an apocalyptic number.

It is an amenable number.

111112012201 is a deficient number, since it is larger than the sum of its proper divisors (808871).

111112012201 is an equidigital number, since it uses as much as digits as its factorization.

111112012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808870.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111112012201 its reverse (102210211111), we get a palindrome (213322223312).

The spelling of 111112012201 in words is "one hundred eleven billion, one hundred twelve million, twelve thousand, two hundred one".