111022320 has 160 divisors (see below), whose sum is σ = 367476480. Its totient is φ = 27648000.

The previous prime is 111022313. The next prime is 111022321. The reversal of 111022320 is 23220111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 111022296 and 111022305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111022321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 442195 + ... + 442445.

It is an arithmetic number, because the mean of its divisors is an integer number (2296728).

Almost surely, 2^111022320 is an apocalyptic number.

111022320 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 111022320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183738240).

111022320 is an abundant number, since it is smaller than the sum of its proper divisors (256454160).

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

111022320 is a wasteful number, since it uses less digits than its factorization.

111022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 111022320 is about 10536.7129599320. The cubic root of 111022320 is about 480.6217637006.

Adding to 111022320 its reverse (23220111), we get a palindrome (134242431).

The spelling of 111022320 in words is "one hundred eleven million, twenty-two thousand, three hundred twenty".