111220122 has 16 divisors (see below), whose sum is σ = 239551200. Its totient is φ = 34221552.

The previous prime is 111220117. The next prime is 111220127. The reversal of 111220122 is 221022111.

It is an interprime number because it is at equal distance from previous prime (111220117) and next prime (111220127).

It is a junction number, because it is equal to n+sod(n) for n = 111220098 and 111220107.

It is not an unprimeable number, because it can be changed into a prime (111220127) 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, 712872 + ... + 713027.

It is an arithmetic number, because the mean of its divisors is an integer number (14971950).

Almost surely, 2^111220122 is an apocalyptic number.

111220122 is an abundant number, since it is smaller than the sum of its proper divisors (128331078).

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

111220122 is a wasteful number, since it uses less digits than its factorization.

111220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425917.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 111220122 is about 10546.0951067208. The cubic root of 111220122 is about 480.9070262884.

Adding to 111220122 its reverse (221022111), we get a palindrome (332242233).

The spelling of 111220122 in words is "one hundred eleven million, two hundred twenty thousand, one hundred twenty-two".