332221231 has 2 divisors, whose sum is σ = 332221232. Its totient is φ = 332221230.

The previous prime is 332221207. The next prime is 332221249. The reversal of 332221231 is 132122233.

It is a strong prime.

It is an emirp because it is prime and its reverse (132122233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 332221231 - 2⁵ = 332221199 is a prime.

It is a super-2 number, since 2×332221231² = 220741892654310722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 332221199 and 332221208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (332201231) 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, 166110615 + 166110616.

It is an arithmetic number, because the mean of its divisors is an integer number (166110616).

Almost surely, 2^332221231 is an apocalyptic number.

332221231 is a deficient number, since it is larger than the sum of its proper divisors (1).

332221231 is an equidigital number, since it uses as much as digits as its factorization.

332221231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 19.

The square root of 332221231 is about 18226.9369615413. The cubic root of 332221231 is about 692.5893265371.

Adding to 332221231 its reverse (132122233), we get a palindrome (464343464).

It can be divided in two parts, 33222 and 1231, that added together give a triangular number (34453 = T₂₆₂).

The spelling of 332221231 in words is "three hundred thirty-two million, two hundred twenty-one thousand, two hundred thirty-one".