2231022321 has 36 divisors (see below), whose sum is σ = 3585005424. Its totient is φ = 1335789840.

The previous prime is 2231022317. The next prime is 2231022329. The reversal of 2231022321 is 1232201322.

It is not a de Polignac number, because 2231022321 - 2² = 2231022317 is a prime.

It is a super-3 number, since 3×2231022321³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231022294 and 2231022303.

It is not an unprimeable number, because it can be changed into a prime (2231022329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 78046 + ... + 102728.

It is an arithmetic number, because the mean of its divisors is an integer number (99583484).

Almost surely, 2^2231022321 is an apocalyptic number.

It is an amenable number.

2231022321 is a deficient number, since it is larger than the sum of its proper divisors (1353983103).

2231022321 is a wasteful number, since it uses less digits than its factorization.

2231022321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24794 (or 24780 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2231022321 is about 47233.6989976436. The cubic root of 2231022321 is about 1306.6761726699.

Adding to 2231022321 its reverse (1232201322), we get a palindrome (3463223643).

The spelling of 2231022321 in words is "two billion, two hundred thirty-one million, twenty-two thousand, three hundred twenty-one".