111112222101121 has 16 divisors (see below), whose sum is σ = 112737942355968. Its totient is φ = 109498352418000.

The previous prime is 111112222101091. The next prime is 111112222101163. The reversal of 111112222101121 is 121101222211111.

It is a cyclic number.

It is not a de Polignac number, because 111112222101121 - 2²⁷ = 111112087883393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111112222801121) 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, 241611426 + ... + 242070868.

It is an arithmetic number, because the mean of its divisors is an integer number (7046121397248).

Almost surely, 2^{111112222101121} is an apocalyptic number.

It is an amenable number.

111112222101121 is a deficient number, since it is larger than the sum of its proper divisors (1625720254847).

111112222101121 is a wasteful number, since it uses less digits than its factorization.

111112222101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472332.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 111112222101121 its reverse (121101222211111), we get a palindrome (232213444312232).

The spelling of 111112222101121 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred twenty-two million, one hundred one thousand, one hundred twenty-one".