111222140 has 24 divisors (see below), whose sum is σ = 235978512. Its totient is φ = 44029440.

The previous prime is 111222127. The next prime is 111222151. The reversal of 111222140 is 41222111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26726 + ... + 30605.

It is an arithmetic number, because the mean of its divisors is an integer number (9832438).

Almost surely, 2^111222140 is an apocalyptic number.

111222140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111222140 is an abundant number, since it is smaller than the sum of its proper divisors (124756372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111222140 is a wasteful number, since it uses less digits than its factorization.

111222140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57437 (or 57435 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 111222140 is about 10546.1907815097. The cubic root of 111222140 is about 480.9099348284.

Adding to 111222140 its reverse (41222111), we get a palindrome (152444251).

The spelling of 111222140 in words is "one hundred eleven million, two hundred twenty-two thousand, one hundred forty".