11122691 has 4 divisors (see below), whose sum is σ = 11359392. Its totient is φ = 10885992.

The previous prime is 11122663. The next prime is 11122711. The reversal of 11122691 is 19622111.

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: 19622111 = 113 ⋅173647.

It is a cyclic number.

It is not a de Polignac number, because 11122691 - 2⁶ = 11122627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11122291) 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, 118280 + ... + 118373.

It is an arithmetic number, because the mean of its divisors is an integer number (2839848).

Almost surely, 2^11122691 is an apocalyptic number.

11122691 is a deficient number, since it is larger than the sum of its proper divisors (236701).

11122691 is an equidigital number, since it uses as much as digits as its factorization.

11122691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236700.

The product of its digits is 216, while the sum is 23.

The square root of 11122691 is about 3335.0698643357. The cubic root of 11122691 is about 223.2218093714.

The spelling of 11122691 in words is "eleven million, one hundred twenty-two thousand, six hundred ninety-one".