32235225221 has 2 divisors, whose sum is σ = 32235225222. Its totient is φ = 32235225220.

The previous prime is 32235225131. The next prime is 32235225293. The reversal of 32235225221 is 12252253223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24060352996 + 8174872225 = 155114^2 + 90415^2 .

It is a cyclic number.

It is not a de Polignac number, because 32235225221 - 2²² = 32231030917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32235222221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16117612610 + 16117612611.

It is an arithmetic number, because the mean of its divisors is an integer number (16117612611).

Almost surely, 2^32235225221 is an apocalyptic number.

It is an amenable number.

32235225221 is a deficient number, since it is larger than the sum of its proper divisors (1).

32235225221 is an equidigital number, since it uses as much as digits as its factorization.

32235225221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 29.

Adding to 32235225221 its reverse (12252253223), we get a palindrome (44487478444).

The spelling of 32235225221 in words is "thirty-two billion, two hundred thirty-five million, two hundred twenty-five thousand, two hundred twenty-one".