332312213 has 4 divisors (see below), whose sum is σ = 340040448. Its totient is φ = 324583980.

The previous prime is 332312179. The next prime is 332312273. The reversal of 332312213 is 312213233.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312213233 = 67 ⋅4659899.

It is a cyclic number.

It is not a de Polignac number, because 332312213 - 2²⁰ = 331263637 is a prime.

It is a super-2 number, since 2×332312213² = 220862813817914738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332312273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3864053 + ... + 3864138.

It is an arithmetic number, because the mean of its divisors is an integer number (85010112).

Almost surely, 2^332312213 is an apocalyptic number.

It is an amenable number.

332312213 is a deficient number, since it is larger than the sum of its proper divisors (7728235).

332312213 is an equidigital number, since it uses as much as digits as its factorization.

332312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7728234.

The product of its digits is 648, while the sum is 20.

The square root of 332312213 is about 18229.4326022507. The cubic root of 332312213 is about 692.6525448635.

Adding to 332312213 its reverse (312213233), we get a palindrome (644525446).

The spelling of 332312213 in words is "three hundred thirty-two million, three hundred twelve thousand, two hundred thirteen".