32220121 has 2 divisors, whose sum is σ = 32220122. Its totient is φ = 32220120.

The previous prime is 32220109. The next prime is 32220157. The reversal of 32220121 is 12102223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31764496 + 455625 = 5636^2 + 675^2 .

It is a cyclic number.

It is not a de Polignac number, because 32220121 - 2¹¹ = 32218073 is a prime.

It is not a weakly prime, because it can be changed into another prime (32260121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16110060 + 16110061.

It is an arithmetic number, because the mean of its divisors is an integer number (16110061).

Almost surely, 2^32220121 is an apocalyptic number.

It is an amenable number.

32220121 is a deficient number, since it is larger than the sum of its proper divisors (1).

32220121 is an equidigital number, since it uses as much as digits as its factorization.

32220121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 32220121 is about 5676.2770369319. The cubic root of 32220121 is about 318.2065065593.

Adding to 32220121 its reverse (12102223), we get a palindrome (44322344).

The spelling of 32220121 in words is "thirty-two million, two hundred twenty thousand, one hundred twenty-one".