20001202201213 has 2 divisors, whose sum is σ = 20001202201214. Its totient is φ = 20001202201212.

The previous prime is 20001202201199. The next prime is 20001202201249. The reversal of 20001202201213 is 31210220210002.

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., 19229821173124 + 771381028089 = 4385182^2 + 878283^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001202201213 - 2¹⁷ = 20001202070141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001202201613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000601100606 + 10000601100607.

It is an arithmetic number, because the mean of its divisors is an integer number (10000601100607).

Almost surely, 2^{20001202201213} is an apocalyptic number.

It is an amenable number.

20001202201213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001202201213 is an equidigital number, since it uses as much as digits as its factorization.

20001202201213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20001202201213 its reverse (31210220210002), we get a palindrome (51211422411215).

The spelling of 20001202201213 in words is "twenty trillion, one billion, two hundred two million, two hundred one thousand, two hundred thirteen".