2231321412 has 24 divisors (see below), whose sum is σ = 5304652416. Its totient is φ = 729740128.

The previous prime is 2231321399. The next prime is 2231321419. The reversal of 2231321412 is 2141231322.

It is a super-3 number, since 3×2231321412³ (a number of 29 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2231321419) 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, 1753548 + ... + 1754819.

It is an arithmetic number, because the mean of its divisors is an integer number (221027184).

Almost surely, 2^2231321412 is an apocalyptic number.

It is an amenable number.

2231321412 is an abundant number, since it is smaller than the sum of its proper divisors (3073331004).

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

2231321412 is a wasteful number, since it uses less digits than its factorization.

2231321412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508427 (or 3508425 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 2231321412 is about 47236.8649679464. The cubic root of 2231321412 is about 1306.7345610922.

Adding to 2231321412 its reverse (2141231322), we get a palindrome (4372552734).

The spelling of 2231321412 in words is "two billion, two hundred thirty-one million, three hundred twenty-one thousand, four hundred twelve".