2223111231 has 32 divisors (see below), whose sum is σ = 3596313600. Its totient is φ = 1346063040.

The previous prime is 2223111227. The next prime is 2223111269. The reversal of 2223111231 is 1321113222.

2223111231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2223111231 - 2² = 2223111227 is a prime.

It is a super-2 number, since 2×2223111231² = 9884447090796670722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223111031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379930 + ... + 385736.

It is an arithmetic number, because the mean of its divisors is an integer number (112384800).

Almost surely, 2^2223111231 is an apocalyptic number.

2223111231 is a deficient number, since it is larger than the sum of its proper divisors (1373202369).

2223111231 is a wasteful number, since it uses less digits than its factorization.

2223111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7116 (or 7110 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2223111231 is about 47149.8804982579. The cubic root of 2223111231 is about 1305.1298747741.

Adding to 2223111231 its reverse (1321113222), we get a palindrome (3544224453).

The spelling of 2223111231 in words is "two billion, two hundred twenty-three million, one hundred eleven thousand, two hundred thirty-one".