212279568285 has 8 divisors (see below), whose sum is σ = 339647309280. Its totient is φ = 113215769744.

The previous prime is 212279568271. The next prime is 212279568287. The reversal of 212279568285 is 582865972212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212279568285 - 2⁵ = 212279568253 is a prime.

It is a super-2 number, since 2×212279568285² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212279568287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7075985595 + ... + 7075985624.

It is an arithmetic number, because the mean of its divisors is an integer number (42455913660).

Almost surely, 2^212279568285 is an apocalyptic number.

It is an amenable number.

212279568285 is a deficient number, since it is larger than the sum of its proper divisors (127367740995).

212279568285 is a wasteful number, since it uses less digits than its factorization.

212279568285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14151971227.

The product of its digits is 9676800, while the sum is 57.

The spelling of 212279568285 in words is "two hundred twelve billion, two hundred seventy-nine million, five hundred sixty-eight thousand, two hundred eighty-five".