11422111 has 4 divisors (see below), whose sum is σ = 11448000. Its totient is φ = 11396224.

The previous prime is 11422109. The next prime is 11422121. The reversal of 11422111 is 11122411.

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 11422111 - 2¹ = 11422109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11422091 and 11422100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11422121) 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, 12271 + ... + 13168.

It is an arithmetic number, because the mean of its divisors is an integer number (2862000).

Almost surely, 2^11422111 is an apocalyptic number.

11422111 is a deficient number, since it is larger than the sum of its proper divisors (25889).

11422111 is an equidigital number, since it uses as much as digits as its factorization.

11422111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25888.

The product of its digits is 16, while the sum is 13.

The square root of 11422111 is about 3379.6613735698. The cubic root of 11422111 is about 225.2071244987.

Adding to 11422111 its reverse (11122411), we get a palindrome (22544522).

The spelling of 11422111 in words is "eleven million, four hundred twenty-two thousand, one hundred eleven".