2331312222 has 16 divisors (see below), whose sum is σ = 4666433040. Its totient is φ = 776469312.

The previous prime is 2331312211. The next prime is 2331312241. The reversal of 2331312222 is 2222131332.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150703 + ... + 165450.

It is an arithmetic number, because the mean of its divisors is an integer number (291652065).

Almost surely, 2^2331312222 is an apocalyptic number.

2331312222 is an abundant number, since it is smaller than the sum of its proper divisors (2335120818).

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

2331312222 is a wasteful number, since it uses less digits than its factorization.

2331312222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317387.

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

The square root of 2331312222 is about 48283.6641318780. The cubic root of 2331312222 is about 1325.9693340255.

Adding to 2331312222 its reverse (2222131332), we get a palindrome (4553443554).

The spelling of 2331312222 in words is "two billion, three hundred thirty-one million, three hundred twelve thousand, two hundred twenty-two".