32232220021 has 2 divisors, whose sum is σ = 32232220022. Its totient is φ = 32232220020.

The previous prime is 32232219983. The next prime is 32232220039. The reversal of 32232220021 is 12002223223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31851540900 + 380679121 = 178470^2 + 19511^2 .

It is an emirp because it is prime and its reverse (12002223223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32232220021 - 2⁷ = 32232219893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32232220081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16116110010 + 16116110011.

It is an arithmetic number, because the mean of its divisors is an integer number (16116110011).

Almost surely, 2^32232220021 is an apocalyptic number.

It is an amenable number.

32232220021 is a deficient number, since it is larger than the sum of its proper divisors (1).

32232220021 is an equidigital number, since it uses as much as digits as its factorization.

32232220021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 32232220021 its reverse (12002223223), we get a palindrome (44234443244).

The spelling of 32232220021 in words is "thirty-two billion, two hundred thirty-two million, two hundred twenty thousand, twenty-one".