2223223131 has 4 divisors (see below), whose sum is σ = 2964297512. Its totient is φ = 1482148752.

The previous prime is 2223223111. The next prime is 2223223147. The reversal of 2223223131 is 1313223222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2223223131 - 2⁵ = 2223223099 is a prime.

It is a super-2 number, since 2×2223223131² = 9885442180426886322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2223223098 and 2223223107.

It is not an unprimeable number, because it can be changed into a prime (2223223111) 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, 370537186 + ... + 370537191.

It is an arithmetic number, because the mean of its divisors is an integer number (741074378).

Almost surely, 2^2223223131 is an apocalyptic number.

2223223131 is a deficient number, since it is larger than the sum of its proper divisors (741074381).

2223223131 is an equidigital number, since it uses as much as digits as its factorization.

2223223131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741074380.

The product of its digits is 864, while the sum is 21.

The square root of 2223223131 is about 47151.0671247216. The cubic root of 2223223131 is about 1305.1517722514.

Adding to 2223223131 its reverse (1313223222), we get a palindrome (3536446353).

Subtracting from 2223223131 its reverse (1313223222), we obtain a palindrome (909999909).

The spelling of 2223223131 in words is "two billion, two hundred twenty-three million, two hundred twenty-three thousand, one hundred thirty-one".