212405115013 has 32 divisors (see below), whose sum is σ = 262890790400. Its totient is φ = 167113393920.

The previous prime is 212405114899. The next prime is 212405115029. The reversal of 212405115013 is 310511504212.

It is a cyclic number.

It is not a de Polignac number, because 212405115013 - 2¹⁷ = 212404983941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212405115113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52821943 + ... + 52825963.

It is an arithmetic number, because the mean of its divisors is an integer number (8215337200).

Almost surely, 2^212405115013 is an apocalyptic number.

It is an amenable number.

212405115013 is a deficient number, since it is larger than the sum of its proper divisors (50485675387).

212405115013 is a wasteful number, since it uses less digits than its factorization.

212405115013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7157.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 212405115013 its reverse (310511504212), we get a palindrome (522916619225).

The spelling of 212405115013 in words is "two hundred twelve billion, four hundred five million, one hundred fifteen thousand, thirteen".