20202213424213 has 2 divisors, whose sum is σ = 20202213424214. Its totient is φ = 20202213424212.

The previous prime is 20202213424207. The next prime is 20202213424243. The reversal of 20202213424213 is 31242431220202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16331798552644 + 3870414871569 = 4041262^2 + 1967337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202213424213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20202213424243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101106712106 + 10101106712107.

It is an arithmetic number, because the mean of its divisors is an integer number (10101106712107).

Almost surely, 2^{20202213424213} is an apocalyptic number.

It is an amenable number.

20202213424213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202213424213 is an equidigital number, since it uses as much as digits as its factorization.

20202213424213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20202213424213 its reverse (31242431220202), we get a palindrome (51444644644415).

The spelling of 20202213424213 in words is "twenty trillion, two hundred two billion, two hundred thirteen million, four hundred twenty-four thousand, two hundred thirteen".