111421982 has 24 divisors (see below), whose sum is σ = 202877136. Its totient is φ = 45675168.

The previous prime is 111421957. The next prime is 111422009. The reversal of 111421982 is 289124111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22463 + ... + 26970.

It is an arithmetic number, because the mean of its divisors is an integer number (8453214).

Almost surely, 2^111421982 is an apocalyptic number.

111421982 is a deficient number, since it is larger than the sum of its proper divisors (91455154).

111421982 is a wasteful number, since it uses less digits than its factorization.

111421982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49472 (or 49465 counting only the distinct ones).

The product of its digits is 1152, while the sum is 29.

The square root of 111421982 is about 10555.6611351445. The cubic root of 111421982 is about 481.1977926837.

The spelling of 111421982 in words is "one hundred eleven million, four hundred twenty-one thousand, nine hundred eighty-two".