132223021 has 18 divisors (see below), whose sum is σ = 160820142. Its totient is φ = 108385200.

The previous prime is 132223019. The next prime is 132223031. The reversal of 132223021 is 120322231.

It can be written as a sum of positive squares in only one way, i.e., 67420521 + 64802500 = 8211^2 + 8050^2 .

It is not a de Polignac number, because 132223021 - 2¹ = 132223019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 132222986 and 132223004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132223001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 23371 + ... + 28471.

Almost surely, 2^132223021 is an apocalyptic number.

It is an amenable number.

132223021 is a deficient number, since it is larger than the sum of its proper divisors (28597121).

132223021 is an equidigital number, since it uses as much as digits as its factorization.

132223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5161 (or 5131 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 132223021 is about 11498.8269401709. The cubic root of 132223021 is about 509.4509290052.

Adding to 132223021 its reverse (120322231), we get a palindrome (252545252).

The spelling of 132223021 in words is "one hundred thirty-two million, two hundred twenty-three thousand, twenty-one".