11222207 has 4 divisors (see below), whose sum is σ = 11278800. Its totient is φ = 11165616.

The previous prime is 11222201. The next prime is 11222209. The reversal of 11222207 is 70222211.

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 11222207 - 2¹² = 11218111 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 (11222201) 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, 27998 + ... + 28395.

It is an arithmetic number, because the mean of its divisors is an integer number (2819700).

Almost surely, 2^11222207 is an apocalyptic number.

11222207 is a deficient number, since it is larger than the sum of its proper divisors (56593).

11222207 is an equidigital number, since it uses as much as digits as its factorization.

11222207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56592.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 11222207 is about 3349.9562683713. The cubic root of 11222207 is about 223.8855641560.

Adding to 11222207 its reverse (70222211), we get a palindrome (81444418).

The spelling of 11222207 in words is "eleven million, two hundred twenty-two thousand, two hundred seven".