20013212222213 has 16 divisors (see below), whose sum is σ = 22975538323584. Its totient is φ = 17076850297920.

The previous prime is 20013212222183. The next prime is 20013212222233. The reversal of 20013212222213 is 31222221231002.

It is a happy number.

It is not a de Polignac number, because 20013212222213 - 2³⁸ = 19738334315269 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013212222233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4129658 + ... + 7555163.

It is an arithmetic number, because the mean of its divisors is an integer number (1435971145224).

Almost surely, 2^{20013212222213} is an apocalyptic number.

It is an amenable number.

20013212222213 is a deficient number, since it is larger than the sum of its proper divisors (2962326101371).

20013212222213 is a wasteful number, since it uses less digits than its factorization.

20013212222213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11685932.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20013212222213 its reverse (31222221231002), we get a palindrome (51235433453215).

The spelling of 20013212222213 in words is "twenty trillion, thirteen billion, two hundred twelve million, two hundred twenty-two thousand, two hundred thirteen".