12220202221001 has 2 divisors, whose sum is σ = 12220202221002. Its totient is φ = 12220202221000.

The previous prime is 12220202220997. The next prime is 12220202221049. The reversal of 12220202221001 is 10012220202221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9921718815376 + 2298483405625 = 3149876^2 + 1516075^2 .

It is an emirp because it is prime and its reverse (10012220202221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12220202221001 - 2² = 12220202220997 is a prime.

It is not a weakly prime, because it can be changed into another prime (12220202221501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110101110500 + 6110101110501.

It is an arithmetic number, because the mean of its divisors is an integer number (6110101110501).

Almost surely, 2^{12220202221001} is an apocalyptic number.

It is an amenable number.

12220202221001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220202221001 is an equidigital number, since it uses as much as digits as its factorization.

12220202221001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12220202221001 its reverse (10012220202221), we get a palindrome (22232422423222).

The spelling of 12220202221001 in words is "twelve trillion, two hundred twenty billion, two hundred two million, two hundred twenty-one thousand, one".