111122160 has 80 divisors (see below), whose sum is σ = 347061120. Its totient is φ = 29410560.

The previous prime is 111122159. The next prime is 111122173. The reversal of 111122160 is 61221111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31695 + ... + 35025.

It is an arithmetic number, because the mean of its divisors is an integer number (4338264).

Almost surely, 2^111122160 is an apocalyptic number.

111122160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111122160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173530560).

111122160 is an abundant number, since it is smaller than the sum of its proper divisors (235938960).

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

111122160 is a wasteful number, since it uses less digits than its factorization.

111122160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3486 (or 3480 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 111122160 is about 10541.4496156838. The cubic root of 111122160 is about 480.7657914962.

Adding to 111122160 its reverse (61221111), we get a palindrome (172343271).

The spelling of 111122160 in words is "one hundred eleven million, one hundred twenty-two thousand, one hundred sixty".