111121222192 has 20 divisors (see below), whose sum is σ = 220548524616. Its totient is φ = 54205473920.

The previous prime is 111121222187. The next prime is 111121222193. The reversal of 111121222192 is 291222121111.

It is a super-3 number, since 3×111121222192³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (111121222193) 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, 84695398 + ... + 84696709.

Almost surely, 2^111121222192 is an apocalyptic number.

It is an amenable number.

111121222192 is a deficient number, since it is larger than the sum of its proper divisors (109427302424).

111121222192 is a wasteful number, since it uses less digits than its factorization.

111121222192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169392156 (or 169392150 counting only the distinct ones).

The product of its digits is 288, while the sum is 25.

The spelling of 111121222192 in words is "one hundred eleven billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred ninety-two".