212262054065 has 4 divisors (see below), whose sum is σ = 254714464884. Its totient is φ = 169809643248.

The previous prime is 212262053987. The next prime is 212262054079. The reversal of 212262054065 is 560450262212.

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 108366714481 + 103895339584 = 329191^2 + 322328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212262054065 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21226205402 + ... + 21226205411.

It is an arithmetic number, because the mean of its divisors is an integer number (63678616221).

Almost surely, 2^212262054065 is an apocalyptic number.

It is an amenable number.

212262054065 is a deficient number, since it is larger than the sum of its proper divisors (42452410819).

212262054065 is an equidigital number, since it uses as much as digits as its factorization.

212262054065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42452410818.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 212262054065 in words is "two hundred twelve billion, two hundred sixty-two million, fifty-four thousand, sixty-five".