32022201221 has 2 divisors, whose sum is σ = 32022201222. Its totient is φ = 32022201220.

The previous prime is 32022201139. The next prime is 32022201287. The reversal of 32022201221 is 12210222023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27352528996 + 4669672225 = 165386^2 + 68335^2 .

It is an emirp because it is prime and its reverse (12210222023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32022201221 - 2¹⁸ = 32021939077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32022201221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32022201121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16011100610 + 16011100611.

It is an arithmetic number, because the mean of its divisors is an integer number (16011100611).

Almost surely, 2^32022201221 is an apocalyptic number.

It is an amenable number.

32022201221 is a deficient number, since it is larger than the sum of its proper divisors (1).

32022201221 is an equidigital number, since it uses as much as digits as its factorization.

32022201221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 32022201221 its reverse (12210222023), we get a palindrome (44232423244).

The spelling of 32022201221 in words is "thirty-two billion, twenty-two million, two hundred one thousand, two hundred twenty-one".