111222126 has 32 divisors (see below), whose sum is σ = 261701280. Its totient is φ = 34892928.

The previous prime is 111222119. The next prime is 111222127. The reversal of 111222126 is 621222111.

It is a super-2 number, since 2×111222126² = 24740722623919752, which contains 22 as substring.

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

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111222099 and 111222108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222127) 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, 59661 + ... + 61496.

It is an arithmetic number, because the mean of its divisors is an integer number (8178165).

Almost surely, 2^111222126 is an apocalyptic number.

111222126 is an abundant number, since it is smaller than the sum of its proper divisors (150479154).

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

111222126 is a wasteful number, since it uses less digits than its factorization.

111222126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121185 (or 121179 counting only the distinct ones).

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

The square root of 111222126 is about 10546.1901177629. The cubic root of 111222126 is about 480.9099146503.

Adding to 111222126 its reverse (621222111), we get a palindrome (732444237).

The spelling of 111222126 in words is "one hundred eleven million, two hundred twenty-two thousand, one hundred twenty-six".