212518042175 has 6 divisors (see below), whose sum is σ = 263522372328. Its totient is φ = 170014433720.

The previous prime is 212518042157. The next prime is 212518042199. The reversal of 212518042175 is 571240815212.

It is not a de Polignac number, because 212518042175 - 2⁶ = 212518042111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4250360819 + ... + 4250360868.

It is an arithmetic number, because the mean of its divisors is an integer number (43920395388).

Almost surely, 2^212518042175 is an apocalyptic number.

212518042175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

212518042175 is a deficient number, since it is larger than the sum of its proper divisors (51004330153).

212518042175 is an equidigital number, since it uses as much as digits as its factorization.

212518042175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8500721697 (or 8500721692 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 38.

Adding to 212518042175 its reverse (571240815212), we get a palindrome (783758857387).

The spelling of 212518042175 in words is "two hundred twelve billion, five hundred eighteen million, forty-two thousand, one hundred seventy-five".