11213207 has 4 divisors (see below), whose sum is σ = 11298936. Its totient is φ = 11127480.

The previous prime is 11213201. The next prime is 11213219. The reversal of 11213207 is 70231211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70231211 = 4363 ⋅16097.

It is a cyclic number.

It is not a de Polignac number, because 11213207 - 2⁶ = 11213143 is a prime.

It is a super-2 number, since 2×11213207² = 251472022449698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42668 + ... + 42929.

It is an arithmetic number, because the mean of its divisors is an integer number (2824734).

Almost surely, 2^11213207 is an apocalyptic number.

11213207 is a deficient number, since it is larger than the sum of its proper divisors (85729).

11213207 is an equidigital number, since it uses as much as digits as its factorization.

11213207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85728.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 11213207 is about 3348.6126978198. The cubic root of 11213207 is about 223.8256974717.

Adding to 11213207 its reverse (70231211), we get a palindrome (81444418).

The spelling of 11213207 in words is "eleven million, two hundred thirteen thousand, two hundred seven".