20002211111213 has 2 divisors, whose sum is σ = 20002211111214. Its totient is φ = 20002211111212.

The previous prime is 20002211111191. The next prime is 20002211111219. The reversal of 20002211111213 is 31211111220002.

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., 12701504382889 + 7300706728324 = 3563917^2 + 2701982^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002211111213 - 2⁴⁴ = 2410025066797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20002211111191 and 20002211111200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20002211111219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001105555606 + 10001105555607.

It is an arithmetic number, because the mean of its divisors is an integer number (10001105555607).

Almost surely, 2^{20002211111213} is an apocalyptic number.

It is an amenable number.

20002211111213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002211111213 is an equidigital number, since it uses as much as digits as its factorization.

20002211111213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20002211111213 its reverse (31211111220002), we get a palindrome (51213322331215).

The spelling of 20002211111213 in words is "twenty trillion, two billion, two hundred eleven million, one hundred eleven thousand, two hundred thirteen".