3121213224 has 64 divisors (see below), whose sum is σ = 8088192000. Its totient is φ = 1003045824.

The previous prime is 3121213217. The next prime is 3121213231. The reversal of 3121213224 is 4223121213.

3121213224 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 (3121213217) and next prime (3121213231).

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

It is a self number, because there is not a number n which added to its sum of digits gives 3121213224.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54927 + ... + 96225.

It is an arithmetic number, because the mean of its divisors is an integer number (126378000).

Almost surely, 2^3121213224 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 3121213224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4044096000).

3121213224 is an abundant number, since it is smaller than the sum of its proper divisors (4966978776).

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

3121213224 is a wasteful number, since it uses less digits than its factorization.

3121213224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41422 (or 41418 counting only the distinct ones).

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

The square root of 3121213224 is about 55867.8192164326. The cubic root of 3121213224 is about 1461.4180917367.

Adding to 3121213224 its reverse (4223121213), we get a palindrome (7344334437).

The spelling of 3121213224 in words is "three billion, one hundred twenty-one million, two hundred thirteen thousand, two hundred twenty-four".