332225021 has 2 divisors, whose sum is σ = 332225022. Its totient is φ = 332225020.

The previous prime is 332225017. The next prime is 332225027. The reversal of 332225021 is 120522233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269419396 + 62805625 = 16414^2 + 7925^2 .

It is a cyclic number.

It is not a de Polignac number, because 332225021 - 2² = 332225017 is a prime.

It is a super-2 number, since 2×332225021² = 220746929156900882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 332224984 and 332225002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (332225027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166112510 + 166112511.

It is an arithmetic number, because the mean of its divisors is an integer number (166112511).

Almost surely, 2^332225021 is an apocalyptic number.

It is an amenable number.

332225021 is a deficient number, since it is larger than the sum of its proper divisors (1).

332225021 is an equidigital number, since it uses as much as digits as its factorization.

332225021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 332225021 is about 18227.0409282472. The cubic root of 332225021 is about 692.5919602274.

Adding to 332225021 its reverse (120522233), we get a palindrome (452747254).

The spelling of 332225021 in words is "three hundred thirty-two million, two hundred twenty-five thousand, twenty-one".