12221202012001 has 2 divisors, whose sum is σ = 12221202012002. Its totient is φ = 12221202012000.

The previous prime is 12221202011951. The next prime is 12221202012011. The reversal of 12221202012001 is 10021020212221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8850952253025 + 3370249758976 = 2975055^2 + 1835824^2 .

It is an emirp because it is prime and its reverse (10021020212221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12221202012001 - 2⁷ = 12221202011873 is a prime.

It is not a weakly prime, because it can be changed into another prime (12221202012011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110601006000 + 6110601006001.

It is an arithmetic number, because the mean of its divisors is an integer number (6110601006001).

Almost surely, 2^{12221202012001} is an apocalyptic number.

It is an amenable number.

12221202012001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221202012001 is an equidigital number, since it uses as much as digits as its factorization.

12221202012001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12221202012001 its reverse (10021020212221), we get a palindrome (22242222224222).

The spelling of 12221202012001 in words is "twelve trillion, two hundred twenty-one billion, two hundred two million, twelve thousand, one".