332021213 has 2 divisors, whose sum is σ = 332021214. Its totient is φ = 332021212.

The previous prime is 332021201. The next prime is 332021243. The reversal of 332021213 is 312120233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320481604 + 11539609 = 17902^2 + 3397^2 .

It is a cyclic number.

It is not a de Polignac number, because 332021213 - 2⁶ = 332021149 is a prime.

It is a super-2 number, since 2×332021213² = 220476171763982738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 332021191 and 332021200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (332021243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166010606 + 166010607.

It is an arithmetic number, because the mean of its divisors is an integer number (166010607).

Almost surely, 2^332021213 is an apocalyptic number.

It is an amenable number.

332021213 is a deficient number, since it is larger than the sum of its proper divisors (1).

332021213 is an equidigital number, since it uses as much as digits as its factorization.

332021213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 332021213 is about 18221.4492563023. The cubic root of 332021213 is about 692.4503045746.

Adding to 332021213 its reverse (312120233), we get a palindrome (644141446).

The spelling of 332021213 in words is "three hundred thirty-two million, twenty-one thousand, two hundred thirteen".