12220122001 has 2 divisors, whose sum is σ = 12220122002. Its totient is φ = 12220122000.

The previous prime is 12220121989. The next prime is 12220122107. The reversal of 12220122001 is 10022102221.

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., 7018250625 + 5201871376 = 83775^2 + 72124^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220122001 - 2²¹ = 12218024849 is a prime.

It is not a weakly prime, because it can be changed into another prime (12220126001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110061000 + 6110061001.

It is an arithmetic number, because the mean of its divisors is an integer number (6110061001).

Almost surely, 2^12220122001 is an apocalyptic number.

It is an amenable number.

12220122001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220122001 is an equidigital number, since it uses as much as digits as its factorization.

12220122001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12220122001 its reverse (10022102221), we get a palindrome (22242224222).

The spelling of 12220122001 in words is "twelve billion, two hundred twenty million, one hundred twenty-two thousand, one".