32221601 has 2 divisors, whose sum is σ = 32221602. Its totient is φ = 32221600.

The previous prime is 32221589. The next prime is 32221619. The reversal of 32221601 is 10612223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29986576 + 2235025 = 5476^2 + 1495^2 .

It is a cyclic number.

It is not a de Polignac number, because 32221601 - 2⁶ = 32221537 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32221601.

It is not a weakly prime, because it can be changed into another prime (32221621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16110800 + 16110801.

It is an arithmetic number, because the mean of its divisors is an integer number (16110801).

Almost surely, 2^32221601 is an apocalyptic number.

It is an amenable number.

32221601 is a deficient number, since it is larger than the sum of its proper divisors (1).

32221601 is an equidigital number, since it uses as much as digits as its factorization.

32221601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 32221601 is about 5676.4074025743. The cubic root of 32221601 is about 318.2113786537.

Adding to 32221601 its reverse (10612223), we get a palindrome (42833824).

The spelling of 32221601 in words is "thirty-two million, two hundred twenty-one thousand, six hundred one".