132102221 has 4 divisors (see below), whose sum is σ = 136657500. Its totient is φ = 127546944.

The previous prime is 132102211. The next prime is 132102227. The reversal of 132102221 is 122201231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48580900 + 83521321 = 6970^2 + 9139^2 .

It is a cyclic number.

It is not a de Polignac number, because 132102221 - 2¹⁰ = 132101197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132102196 and 132102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132102227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2277596 + ... + 2277653.

It is an arithmetic number, because the mean of its divisors is an integer number (34164375).

Almost surely, 2^132102221 is an apocalyptic number.

It is an amenable number.

132102221 is a deficient number, since it is larger than the sum of its proper divisors (4555279).

132102221 is an equidigital number, since it uses as much as digits as its factorization.

132102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4555278.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 132102221 is about 11493.5730301765. The cubic root of 132102221 is about 509.2957355980.

Adding to 132102221 its reverse (122201231), we get a palindrome (254303452).

The spelling of 132102221 in words is "one hundred thirty-two million, one hundred two thousand, two hundred twenty-one".