332030021 has 2 divisors, whose sum is σ = 332030022. Its totient is φ = 332030020.

The previous prime is 332030011. The next prime is 332030051. The reversal of 332030021 is 120030233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302272996 + 29757025 = 17386^2 + 5455^2 .

It is a cyclic number.

It is not a de Polignac number, because 332030021 - 2¹⁰ = 332028997 is a prime.

It is a super-2 number, since 2×332030021² = 220487869690520882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 332029978 and 332030005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (332030011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166015010 + 166015011.

It is an arithmetic number, because the mean of its divisors is an integer number (166015011).

Almost surely, 2^332030021 is an apocalyptic number.

It is an amenable number.

332030021 is a deficient number, since it is larger than the sum of its proper divisors (1).

332030021 is an equidigital number, since it uses as much as digits as its factorization.

332030021 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 14.

The square root of 332030021 is about 18221.6909478786. The cubic root of 332030021 is about 692.4564277259.

Adding to 332030021 its reverse (120030233), we get a palindrome (452060254).

The spelling of 332030021 in words is "three hundred thirty-two million, thirty thousand, twenty-one".