111220662 has 32 divisors (see below), whose sum is σ = 255704832. Its totient is φ = 31591584.

The previous prime is 111220649. The next prime is 111220667. The reversal of 111220662 is 266022111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388 + ... + 14919.

It is an arithmetic number, because the mean of its divisors is an integer number (7990776).

Almost surely, 2^111220662 is an apocalyptic number.

111220662 is an abundant number, since it is smaller than the sum of its proper divisors (144484170).

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

111220662 is a wasteful number, since it uses less digits than its factorization.

111220662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15492.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 111220662 is about 10546.1207085828. The cubic root of 111220662 is about 480.9078045930.

Adding to 111220662 its reverse (266022111), we get a palindrome (377242773).

The spelling of 111220662 in words is "one hundred eleven million, two hundred twenty thousand, six hundred sixty-two".