3322501621 has 2 divisors, whose sum is σ = 3322501622. Its totient is φ = 3322501620.

The previous prime is 3322501549. The next prime is 3322501661. The reversal of 3322501621 is 1261052233.

3322501621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3103047025 + 219454596 = 55705^2 + 14814^2 .

It is a cyclic number.

It is not a de Polignac number, because 3322501621 - 2⁹ = 3322501109 is a prime.

It is a super-2 number, since 2×3322501621² = 22078034043095255282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3322501661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1661250810 + 1661250811.

It is an arithmetic number, because the mean of its divisors is an integer number (1661250811).

Almost surely, 2^3322501621 is an apocalyptic number.

It is an amenable number.

3322501621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3322501621 is an equidigital number, since it uses as much as digits as its factorization.

3322501621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3322501621 is about 57641.1452089564. The cubic root of 3322501621 is about 1492.1817834952.

Adding to 3322501621 its reverse (1261052233), we get a palindrome (4583553854).

The spelling of 3322501621 in words is "three billion, three hundred twenty-two million, five hundred one thousand, six hundred twenty-one".