3242201021221 has 2 divisors, whose sum is σ = 3242201021222. Its totient is φ = 3242201021220.

The previous prime is 3242201021203. The next prime is 3242201021321. The reversal of 3242201021221 is 1221201022423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3180604730625 + 61596290596 = 1783425^2 + 248186^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3242201021221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3242201021192 and 3242201021201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3242201021321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1621100510610 + 1621100510611.

It is an arithmetic number, because the mean of its divisors is an integer number (1621100510611).

Almost surely, 2^{3242201021221} is an apocalyptic number.

It is an amenable number.

3242201021221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3242201021221 is an equidigital number, since it uses as much as digits as its factorization.

3242201021221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 3242201021221 its reverse (1221201022423), we get a palindrome (4463402043644).

The spelling of 3242201021221 in words is "three trillion, two hundred forty-two billion, two hundred one million, twenty-one thousand, two hundred twenty-one".