212124264769 has 4 divisors (see below), whose sum is σ = 217857353044. Its totient is φ = 206391176496.

The previous prime is 212124264761. The next prime is 212124264787. The reversal of 212124264769 is 967462421212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 145618560000 + 66505704769 = 381600^2 + 257887^2 .

It is a cyclic number.

It is not a de Polignac number, because 212124264769 - 2³ = 212124264761 is a prime.

It is a super-3 number, since 3×212124264769³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212124264761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2866544082 + ... + 2866544155.

It is an arithmetic number, because the mean of its divisors is an integer number (54464338261).

Almost surely, 2^212124264769 is an apocalyptic number.

It is an amenable number.

212124264769 is a deficient number, since it is larger than the sum of its proper divisors (5733088275).

212124264769 is an equidigital number, since it uses as much as digits as its factorization.

212124264769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5733088274.

The product of its digits is 580608, while the sum is 46.

The spelling of 212124264769 in words is "two hundred twelve billion, one hundred twenty-four million, two hundred sixty-four thousand, seven hundred sixty-nine".