111228966 has 48 divisors (see below), whose sum is σ = 253090656. Its totient is φ = 35236608.

The previous prime is 111228937. The next prime is 111228967. The reversal of 111228966 is 669822111.

It is a self number, because there is not a number n which added to its sum of digits gives 111228966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111228967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70846 + ... + 72398.

It is an arithmetic number, because the mean of its divisors is an integer number (5272722).

Almost surely, 2^111228966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111228966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126545328).

111228966 is an abundant number, since it is smaller than the sum of its proper divisors (141861690).

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

111228966 is a wasteful number, since it uses less digits than its factorization.

111228966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757 (or 1754 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 111228966 is about 10546.5144005022. The cubic root of 111228966 is about 480.9197728698.

The spelling of 111228966 in words is "one hundred eleven million, two hundred twenty-eight thousand, nine hundred sixty-six".