3122313222 has 80 divisors (see below), whose sum is σ = 7387245360. Its totient is φ = 879572736.

The previous prime is 3122313151. The next prime is 3122313251. The reversal of 3122313222 is 2223132213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 39 ways as a sum of consecutive naturals, for example, 1050154 + ... + 1053122.

It is an arithmetic number, because the mean of its divisors is an integer number (92340567).

Almost surely, 2^3122313222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3122313222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3693622680).

3122313222 is an abundant number, since it is smaller than the sum of its proper divisors (4264932138).

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

3122313222 is an equidigital number, since it uses as much as digits as its factorization.

3122313222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075 (or 3054 counting only the distinct ones).

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

The square root of 3122313222 is about 55877.6629969436. The cubic root of 3122313222 is about 1461.5897523540.

Adding to 3122313222 its reverse (2223132213), we get a palindrome (5345445435).

The spelling of 3122313222 in words is "three billion, one hundred twenty-two million, three hundred thirteen thousand, two hundred twenty-two".