11224220231 has 12 divisors (see below), whose sum is σ = 13059010080. Its totient is φ = 9619092000.

The previous prime is 11224220219. The next prime is 11224220243. The reversal of 11224220231 is 13202242211.

It is an interprime number because it is at equal distance from previous prime (11224220219) and next prime (11224220243).

It is not a de Polignac number, because 11224220231 - 2²⁶ = 11157111367 is a prime.

It is a super-2 number, since 2×11224220231² (a number of 21 digits) 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 (11224220201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 326690 + ... + 359408.

It is an arithmetic number, because the mean of its divisors is an integer number (1088250840).

Almost surely, 2^11224220231 is an apocalyptic number.

11224220231 is a deficient number, since it is larger than the sum of its proper divisors (1834789849).

11224220231 is an equidigital number, since it uses as much as digits as its factorization.

11224220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39734 (or 39727 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11224220231 its reverse (13202242211), we get a palindrome (24426462442).

The spelling of 11224220231 in words is "eleven billion, two hundred twenty-four million, two hundred twenty thousand, two hundred thirty-one".