3002031221 has 8 divisors (see below), whose sum is σ = 3432259200. Its totient is φ = 2572144848.

The previous prime is 3002031209. The next prime is 3002031281. The reversal of 3002031221 is 1221302003.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3002031221 - 2⁶ = 3002031157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3002031196 and 3002031205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3002031281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66281 + ... + 101966.

It is an arithmetic number, because the mean of its divisors is an integer number (429032400).

Almost surely, 2^3002031221 is an apocalyptic number.

It is an amenable number.

3002031221 is a deficient number, since it is larger than the sum of its proper divisors (430227979).

3002031221 is a wasteful number, since it uses less digits than its factorization.

3002031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170803.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3002031221 is about 54790.7950389479. The cubic root of 3002031221 is about 1442.5749999401.

Adding to 3002031221 its reverse (1221302003), we get a palindrome (4223333224).

The spelling of 3002031221 in words is "three billion, two million, thirty-one thousand, two hundred twenty-one".