3301031221 has 2 divisors, whose sum is σ = 3301031222. Its totient is φ = 3301031220.

The previous prime is 3301031189. The next prime is 3301031281. The reversal of 3301031221 is 1221301033.

3301031221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3177576900 + 123454321 = 56370^2 + 11111^2 .

It is a cyclic number.

It is not a de Polignac number, because 3301031221 - 2⁵ = 3301031189 is a prime.

It is a super-3 number, since 3×3301031221³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3301031195 and 3301031204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3301031281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1650515610 + 1650515611.

It is an arithmetic number, because the mean of its divisors is an integer number (1650515611).

Almost surely, 2^3301031221 is an apocalyptic number.

It is an amenable number.

3301031221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3301031221 is an equidigital number, since it uses as much as digits as its factorization.

3301031221 is an evil number, because the sum of its binary digits is even.

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

The square root of 3301031221 is about 57454.6013910113. The cubic root of 3301031221 is about 1488.9606163536.

Adding to 3301031221 its reverse (1221301033), we get a palindrome (4522332254).

The spelling of 3301031221 in words is "three billion, three hundred one million, thirty-one thousand, two hundred twenty-one".