332199221 has 2 divisors, whose sum is σ = 332199222. Its totient is φ = 332199220.

The previous prime is 332199181. The next prime is 332199223. The reversal of 332199221 is 122991233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252364996 + 79834225 = 15886^2 + 8935^2 .

It is a cyclic number.

It is not a de Polignac number, because 332199221 - 2¹⁰ = 332198197 is a prime.

It is a super-2 number, since 2×332199221² = 220712644866013682, which contains 22 as substring.

Together with 332199223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (332199223) 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 as a sum of consecutive naturals, namely, 166099610 + 166099611.

It is an arithmetic number, because the mean of its divisors is an integer number (166099611).

Almost surely, 2^332199221 is an apocalyptic number.

It is an amenable number.

332199221 is a deficient number, since it is larger than the sum of its proper divisors (1).

332199221 is an equidigital number, since it uses as much as digits as its factorization.

332199221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 32.

The square root of 332199221 is about 18226.3331748325. Note that the first 3 decimals coincide. The cubic root of 332199221 is about 692.5740312797.

The spelling of 332199221 in words is "three hundred thirty-two million, one hundred ninety-nine thousand, two hundred twenty-one".