2231021322 has 24 divisors (see below), whose sum is σ = 4849434720. Its totient is φ = 741280680.

The previous prime is 2231021311. The next prime is 2231021323. The reversal of 2231021322 is 2231201322.

2231021322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2231021322³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2231021295 and 2231021304.

It is not an unprimeable number, because it can be changed into a prime (2231021323) 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, 193672 + ... + 204867.

It is an arithmetic number, because the mean of its divisors is an integer number (202059780).

Almost surely, 2^2231021322 is an apocalyptic number.

2231021322 is an abundant number, since it is smaller than the sum of its proper divisors (2618413398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2231021322 is a wasteful number, since it uses less digits than its factorization.

2231021322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398858 (or 398855 counting only the distinct ones).

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

The square root of 2231021322 is about 47233.6884225655. The cubic root of 2231021322 is about 1306.6759776368.

Adding to 2231021322 its reverse (2231201322), we get a palindrome (4462222644).

The spelling of 2231021322 in words is "two billion, two hundred thirty-one million, twenty-one thousand, three hundred twenty-two".