11222709 has 4 divisors (see below), whose sum is σ = 14963616. Its totient is φ = 7481804.

The previous prime is 11222693. The next prime is 11222741. The reversal of 11222709 is 90722211.

11222709 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90722211 = 3 ⋅30240737.

It is a cyclic number.

It is not a de Polignac number, because 11222709 - 2⁴ = 11222693 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222759) 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, 1870449 + ... + 1870454.

It is an arithmetic number, because the mean of its divisors is an integer number (3740904).

Almost surely, 2^11222709 is an apocalyptic number.

It is an amenable number.

11222709 is a deficient number, since it is larger than the sum of its proper divisors (3740907).

11222709 is an equidigital number, since it uses as much as digits as its factorization.

11222709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740906.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 11222709 is about 3350.0311938846. The cubic root of 11222709 is about 223.8889024441. Note that the first 3 decimals are identical.

The spelling of 11222709 in words is "eleven million, two hundred twenty-two thousand, seven hundred nine".