111220022 has 4 divisors (see below), whose sum is σ = 166830036. Its totient is φ = 55610010.

The previous prime is 111219991. The next prime is 111220037. The reversal of 111220022 is 220022111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220022111 = 103 ⋅2136137.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 111219985 and 111220012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27805004 + ... + 27805007.

It is an arithmetic number, because the mean of its divisors is an integer number (41707509).

Almost surely, 2^111220022 is an apocalyptic number.

111220022 is a deficient number, since it is larger than the sum of its proper divisors (55610014).

111220022 is an equidigital number, since it uses as much as digits as its factorization.

111220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55610013.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 111220022 is about 10546.0903656284. The cubic root of 111220022 is about 480.9068821577.

Adding to 111220022 its reverse (220022111), we get a palindrome (331242133).

It can be divided in two parts, 111 and 220022, that multiplied together give a palindrome (24422442).

The spelling of 111220022 in words is "one hundred eleven million, two hundred twenty thousand, twenty-two".