20002102001201 has 2 divisors, whose sum is σ = 20002102001202. Its totient is φ = 20002102001200.

The previous prime is 20002102001159. The next prime is 20002102001207. The reversal of 20002102001201 is 10210020120002.

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., 18202587069601 + 1799514931600 = 4266449^2 + 1341460^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002102001201 - 2²⁶ = 20002034892337 is a prime.

It is not a weakly prime, because it can be changed into another prime (20002102001207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001051000600 + 10001051000601.

It is an arithmetic number, because the mean of its divisors is an integer number (10001051000601).

Almost surely, 2^{20002102001201} is an apocalyptic number.

It is an amenable number.

20002102001201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002102001201 is an equidigital number, since it uses as much as digits as its factorization.

20002102001201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20002102001201 its reverse (10210020120002), we get a palindrome (30212122121203).

The spelling of 20002102001201 in words is "twenty trillion, two billion, one hundred two million, one thousand, two hundred one".