111402216 has 40 divisors (see below), whose sum is σ = 312031170. Its totient is φ = 37133856.

The previous prime is 111402199. The next prime is 111402217. The reversal of 111402216 is 612204111.

It can be written as a sum of positive squares in only one way, i.e., 99082116 + 12320100 = 9954^2 + 3510^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (111402217) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 85311 + ... + 86606.

Almost surely, 2^111402216 is an apocalyptic number.

It is an amenable number.

111402216 is an abundant number, since it is smaller than the sum of its proper divisors (200628954).

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

111402216 is a wasteful number, since it uses less digits than its factorization.

111402216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171935 (or 171922 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 111402216 is about 10554.7248187719. The cubic root of 111402216 is about 481.1693365452.

Adding to 111402216 its reverse (612204111), we get a palindrome (723606327).

The spelling of 111402216 in words is "one hundred eleven million, four hundred two thousand, two hundred sixteen".