11122022111 has 4 divisors (see below), whose sum is σ = 11380673832. Its totient is φ = 10863370392.

The previous prime is 11122022099. The next prime is 11122022113.

11122022111 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11122022111 - 2¹⁸ = 11121759967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122022113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129325796 + ... + 129325881.

It is an arithmetic number, because the mean of its divisors is an integer number (2845168458).

Almost surely, 2^11122022111 is an apocalyptic number.

11122022111 is a deficient number, since it is larger than the sum of its proper divisors (258651721).

11122022111 is an equidigital number, since it uses as much as digits as its factorization.

11122022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258651720.

The product of its (nonzero) digits is 16, while the sum is 14.

It can be divided in two parts, 111220 and 22111, that added together give a palindrome (133331).

The spelling of 11122022111 in words is "eleven billion, one hundred twenty-two million, twenty-two thousand, one hundred eleven".