11222231 has 4 divisors (see below), whose sum is σ = 11406264. Its totient is φ = 11038200.

The previous prime is 11222219. The next prime is 11222243. The reversal of 11222231 is 13222211.

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: 13222211 = 293 ⋅45127.

It is an interprime number because it is at equal distance from previous prime (11222219) and next prime (11222243).

It is a cyclic number.

It is not a de Polignac number, because 11222231 - 2¹⁴ = 11205847 is a prime.

It is a super-2 number, since 2×11222231² = 251876937234722, 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 (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, 91925 + ... + 92046.

It is an arithmetic number, because the mean of its divisors is an integer number (2851566).

Almost surely, 2^11222231 is an apocalyptic number.

11222231 is a deficient number, since it is larger than the sum of its proper divisors (184033).

11222231 is an equidigital number, since it uses as much as digits as its factorization.

11222231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184032.

The product of its digits is 48, while the sum is 14.

The square root of 11222231 is about 3349.9598505057. The cubic root of 11222231 is about 223.8857237577.

Adding to 11222231 its reverse (13222211), we get a palindrome (24444442).

The spelling of 11222231 in words is "eleven million, two hundred twenty-two thousand, two hundred thirty-one".