212130104507 has 4 divisors (see below), whose sum is σ = 218973011136. Its totient is φ = 205287197880.

The previous prime is 212130104471. The next prime is 212130104561. The reversal of 212130104507 is 705401031212.

212130104507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212130104507 - 2¹⁶ = 212130038971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212130104567) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3421453268 + ... + 3421453329.

It is an arithmetic number, because the mean of its divisors is an integer number (54743252784).

Almost surely, 2^212130104507 is an apocalyptic number.

212130104507 is a deficient number, since it is larger than the sum of its proper divisors (6842906629).

212130104507 is an equidigital number, since it uses as much as digits as its factorization.

212130104507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6842906628.

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 212130104507 its reverse (705401031212), we get a palindrome (917531135719).

The spelling of 212130104507 in words is "two hundred twelve billion, one hundred thirty million, one hundred four thousand, five hundred seven".