32204122421 has 2 divisors, whose sum is σ = 32204122422. Its totient is φ = 32204122420.

The previous prime is 32204122417. The next prime is 32204122427. The reversal of 32204122421 is 12422140223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23233380625 + 8970741796 = 152425^2 + 94714^2 .

It is a cyclic number.

It is not a de Polignac number, because 32204122421 - 2² = 32204122417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32204122427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16102061210 + 16102061211.

It is an arithmetic number, because the mean of its divisors is an integer number (16102061211).

Almost surely, 2^32204122421 is an apocalyptic number.

It is an amenable number.

32204122421 is a deficient number, since it is larger than the sum of its proper divisors (1).

32204122421 is an equidigital number, since it uses as much as digits as its factorization.

32204122421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 32204122421 its reverse (12422140223), we get a palindrome (44626262644).

The spelling of 32204122421 in words is "thirty-two billion, two hundred four million, one hundred twenty-two thousand, four hundred twenty-one".