111122211022 has 4 divisors (see below), whose sum is σ = 166683316536. Its totient is φ = 55561105510.

The previous prime is 111122211007. The next prime is 111122211077. The reversal of 111122211022 is 220112221111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220112221111 = 9059 ⋅24297629.

It is a junction number, because it is equal to n+sod(n) for n = 111122210987 and 111122211005.

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, 27780552754 + ... + 27780552757.

It is an arithmetic number, because the mean of its divisors is an integer number (41670829134).

Almost surely, 2^111122211022 is an apocalyptic number.

111122211022 is a deficient number, since it is larger than the sum of its proper divisors (55561105514).

111122211022 is an equidigital number, since it uses as much as digits as its factorization.

111122211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55561105513.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111122211022 its reverse (220112221111), we get a palindrome (331234432133).

The spelling of 111122211022 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred eleven thousand, twenty-two".