111222564 has 12 divisors (see below), whose sum is σ = 259519344. Its totient is φ = 37074184.

The previous prime is 111222533. The next prime is 111222571. The reversal of 111222564 is 465222111.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4634262 + ... + 4634285.

It is an arithmetic number, because the mean of its divisors is an integer number (21626612).

Almost surely, 2^111222564 is an apocalyptic number.

It is an amenable number.

111222564 is an abundant number, since it is smaller than the sum of its proper divisors (148296780).

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

111222564 is a wasteful number, since it uses less digits than its factorization.

111222564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9268554 (or 9268552 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 111222564 is about 10546.2108835354. The cubic root of 111222564 is about 480.9105459344.

Adding to 111222564 its reverse (465222111), we get a palindrome (576444675).

The spelling of 111222564 in words is "one hundred eleven million, two hundred twenty-two thousand, five hundred sixty-four".