2221233131 has 8 divisors (see below), whose sum is σ = 2396898000. Its totient is φ = 2046254112.

The previous prime is 2221233089. The next prime is 2221233139. The reversal of 2221233131 is 1313321222.

2221233131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221233131 is a prime.

It is a super-2 number, since 2×2221233131² = 9867753244504126322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221233139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164720 + ... + 177693.

It is an arithmetic number, because the mean of its divisors is an integer number (299612250).

Almost surely, 2^2221233131 is an apocalyptic number.

2221233131 is a deficient number, since it is larger than the sum of its proper divisors (175664869).

2221233131 is a wasteful number, since it uses less digits than its factorization.

2221233131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342925.

The product of its digits is 432, while the sum is 20.

The square root of 2221233131 is about 47129.9600148356. The cubic root of 2221233131 is about 1304.7622435971.

Adding to 2221233131 its reverse (1313321222), we get a palindrome (3534554353).

The spelling of 2221233131 in words is "two billion, two hundred twenty-one million, two hundred thirty-three thousand, one hundred thirty-one".