111222356 has 36 divisors (see below), whose sum is σ = 227678976. Its totient is φ = 47401200.

The previous prime is 111222343. The next prime is 111222383. The reversal of 111222356 is 653222111.

It is a plaindrome in base 10.

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, 35951 + ... + 38921.

It is an arithmetic number, because the mean of its divisors is an integer number (6324416).

Almost surely, 2^111222356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111222356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113839488).

111222356 is an abundant number, since it is smaller than the sum of its proper divisors (116456620).

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

111222356 is a wasteful number, since it uses less digits than its factorization.

111222356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3180 (or 3171 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 111222356 is about 10546.2010221691. The cubic root of 111222356 is about 480.9102461467.

Adding to 111222356 its reverse (653222111), we get a palindrome (764444467).

The spelling of 111222356 in words is "one hundred eleven million, two hundred twenty-two thousand, three hundred fifty-six".