3123221244 has 96 divisors (see below), whose sum is σ = 8933912064. Its totient is φ = 835633920.

The previous prime is 3123221237. The next prime is 3123221251. The reversal of 3123221244 is 4421223213.

It is a happy number.

3123221244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3123221237) and next prime (3123221251).

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 31 ways as a sum of consecutive naturals, for example, 99 + ... + 79034.

It is an arithmetic number, because the mean of its divisors is an integer number (93061584).

Almost surely, 2^3123221244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3123221244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4466956032).

3123221244 is an abundant number, since it is smaller than the sum of its proper divisors (5810690820).

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

3123221244 is a wasteful number, since it uses less digits than its factorization.

3123221244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79187 (or 79185 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 3123221244 is about 55885.7874955699. The cubic root of 3123221244 is about 1461.7314237072.

Adding to 3123221244 its reverse (4421223213), we get a palindrome (7544444457).

The spelling of 3123221244 in words is "three billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred forty-four".