111220222 has 16 divisors (see below), whose sum is σ = 179135712. Its totient is φ = 51600640.

The previous prime is 111220217. The next prime is 111220223. The reversal of 111220222 is 222022111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20623 + ... + 25450.

It is an arithmetic number, because the mean of its divisors is an integer number (11195982).

Almost surely, 2^111220222 is an apocalyptic number.

111220222 is a deficient number, since it is larger than the sum of its proper divisors (67915490).

111220222 is a wasteful number, since it uses less digits than its factorization.

111220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46163.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 111220222 is about 10546.0998478110. The cubic root of 111220222 is about 480.9071704191.

Adding to 111220222 its reverse (222022111), we get a palindrome (333242333).

The spelling of 111220222 in words is "one hundred eleven million, two hundred twenty thousand, two hundred twenty-two".