111911422 has 32 divisors (see below), whose sum is σ = 202309632. Its totient is φ = 45391104.

The previous prime is 111911419. The next prime is 111911447. The reversal of 111911422 is 224119111.

It is a junction number, because it is equal to n+sod(n) for n = 111911393 and 111911402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29443 + ... + 33025.

It is an arithmetic number, because the mean of its divisors is an integer number (6322176).

Almost surely, 2^111911422 is an apocalyptic number.

111911422 is a deficient number, since it is larger than the sum of its proper divisors (90398210).

111911422 is a wasteful number, since it uses less digits than its factorization.

111911422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712.

The product of its digits is 144, while the sum is 22.

The square root of 111911422 is about 10578.8194993581. The cubic root of 111911422 is about 481.9013445694.

The spelling of 111911422 in words is "one hundred eleven million, nine hundred eleven thousand, four hundred twenty-two".