132223921 has 2 divisors, whose sum is σ = 132223922. Its totient is φ = 132223920.

The previous prime is 132223919. The next prime is 132223937. The reversal of 132223921 is 129322231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122213025 + 10010896 = 11055^2 + 3164^2 .

It is an emirp because it is prime and its reverse (129322231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 132223921 - 2¹ = 132223919 is a prime.

It is a super-2 number, since 2×132223921² = 34966330569228482, which contains 22 as substring.

Together with 132223919, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (132223961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66111960 + 66111961.

It is an arithmetic number, because the mean of its divisors is an integer number (66111961).

Almost surely, 2^132223921 is an apocalyptic number.

It is an amenable number.

132223921 is a deficient number, since it is larger than the sum of its proper divisors (1).

132223921 is an equidigital number, since it uses as much as digits as its factorization.

132223921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 132223921 is about 11498.8660745310. The cubic root of 132223921 is about 509.4520848926.

The spelling of 132223921 in words is "one hundred thirty-two million, two hundred twenty-three thousand, nine hundred twenty-one".