2231331222 has 32 divisors (see below), whose sum is σ = 4507176960. Its totient is φ = 736373120.

The previous prime is 2231331211. The next prime is 2231331227. The reversal of 2231331222 is 2221331322.

It is a happy number.

It is a super-3 number, since 3×2231331222³ (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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231331227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1055947 + ... + 1058057.

It is an arithmetic number, because the mean of its divisors is an integer number (140849280).

Almost surely, 2^2231331222 is an apocalyptic number.

2231331222 is an abundant number, since it is smaller than the sum of its proper divisors (2275845738).

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

2231331222 is a wasteful number, since it uses less digits than its factorization.

2231331222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788.

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

The square root of 2231331222 is about 47236.9688062221. The cubic root of 2231331222 is about 1306.7364761080.

Adding to 2231331222 its reverse (2221331322), we get a palindrome (4452662544).

It can be divided in two parts, 22313 and 31222, that added together give a palindrome (53535).

The spelling of 2231331222 in words is "two billion, two hundred thirty-one million, three hundred thirty-one thousand, two hundred twenty-two".