11522224231 has 4 divisors (see below), whose sum is σ = 13168256272. Its totient is φ = 9876192192.

The previous prime is 11522224201. The next prime is 11522224247. The reversal of 11522224231 is 13242222511.

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 11522224231 - 2⁹ = 11522223719 is a prime.

It is a super-2 number, since 2×11522224231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11522224196 and 11522224205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11522224201) 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, 823016010 + ... + 823016023.

It is an arithmetic number, because the mean of its divisors is an integer number (3292064068).

Almost surely, 2^11522224231 is an apocalyptic number.

11522224231 is a deficient number, since it is larger than the sum of its proper divisors (1646032041).

11522224231 is an equidigital number, since it uses as much as digits as its factorization.

11522224231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646032040.

The product of its digits is 1920, while the sum is 25.

Adding to 11522224231 its reverse (13242222511), we get a palindrome (24764446742).

The spelling of 11522224231 in words is "eleven billion, five hundred twenty-two million, two hundred twenty-four thousand, two hundred thirty-one".