3003131221 has 4 divisors (see below), whose sum is σ = 3106687500. Its totient is φ = 2899574944.

The previous prime is 3003131213. The next prime is 3003131227. The reversal of 3003131221 is 1221313003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1221313003 = 839 ⋅1455677.

It can be written as a sum of positive squares in 2 ways, for example, as 2257295121 + 745836100 = 47511^2 + 27310^2 .

It is a cyclic number.

It is not a de Polignac number, because 3003131221 - 2³ = 3003131213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3003131195 and 3003131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3003131227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51778096 + ... + 51778153.

It is an arithmetic number, because the mean of its divisors is an integer number (776671875).

Almost surely, 2^3003131221 is an apocalyptic number.

It is an amenable number.

3003131221 is a deficient number, since it is larger than the sum of its proper divisors (103556279).

3003131221 is a wasteful number, since it uses less digits than its factorization.

3003131221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103556278.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 3003131221 is about 54800.8323020737. The cubic root of 3003131221 is about 1442.7511738490.

Adding to 3003131221 its reverse (1221313003), we get a palindrome (4224444224).

The spelling of 3003131221 in words is "three billion, three million, one hundred thirty-one thousand, two hundred twenty-one".