212120110015 has 16 divisors (see below), whose sum is σ = 277949296800. Its totient is φ = 154122065920.

The previous prime is 212120110001. The next prime is 212120110043. The reversal of 212120110015 is 510011021212.

212120110015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212120110015 - 2²³ = 212111721407 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1780594 + ... + 1895983.

It is an arithmetic number, because the mean of its divisors is an integer number (17371831050).

Almost surely, 2^212120110015 is an apocalyptic number.

212120110015 is a deficient number, since it is larger than the sum of its proper divisors (65829186785).

212120110015 is a wasteful number, since it uses less digits than its factorization.

212120110015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677642.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 212120110015 its reverse (510011021212), we get a palindrome (722131131227).

The spelling of 212120110015 in words is "two hundred twelve billion, one hundred twenty million, one hundred ten thousand, fifteen".