212481612113 has 16 divisors (see below), whose sum is σ = 218681804160. Its totient is φ = 206365575936.

The previous prime is 212481612107. The next prime is 212481612127. The reversal of 212481612113 is 311216184212.

It is a de Polignac number, because none of the positive numbers 2^k-212481612113 is a prime.

It is a super-2 number, since 2×212481612113² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212481612113.

It is not an unprimeable number, because it can be changed into a prime (212481612713) 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 15 ways as a sum of consecutive naturals, for example, 7738553 + ... + 7765961.

It is an arithmetic number, because the mean of its divisors is an integer number (13667612760).

Almost surely, 2^212481612113 is an apocalyptic number.

It is an amenable number.

212481612113 is a deficient number, since it is larger than the sum of its proper divisors (6200192047).

212481612113 is a wasteful number, since it uses less digits than its factorization.

212481612113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28936.

The product of its digits is 4608, while the sum is 32.

Adding to 212481612113 its reverse (311216184212), we get a palindrome (523697796325).

It can be divided in two parts, 21248 and 1612113, that added together give a palindrome (1633361).

The spelling of 212481612113 in words is "two hundred twelve billion, four hundred eighty-one million, six hundred twelve thousand, one hundred thirteen".