212221113123013 has 16 divisors (see below), whose sum is σ = 231085828195200. Its totient is φ = 194112095417856.

The previous prime is 212221113123011. The next prime is 212221113123049. The reversal of 212221113123013 is 310321311122212.

It is a cyclic number.

It is not a de Polignac number, because 212221113123013 - 2¹ = 212221113123011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221113123011) 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, 729292120 + ... + 729583057.

It is an arithmetic number, because the mean of its divisors is an integer number (14442864262200).

Almost surely, 2^{212221113123013} is an apocalyptic number.

It is an amenable number.

212221113123013 is a deficient number, since it is larger than the sum of its proper divisors (18864715072187).

212221113123013 is a wasteful number, since it uses less digits than its factorization.

212221113123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458875436.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 212221113123013 its reverse (310321311122212), we get a palindrome (522542424245225).

The spelling of 212221113123013 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred thirteen million, one hundred twenty-three thousand, thirteen".