212248276577 has 4 divisors (see below), whose sum is σ = 212252952516. Its totient is φ = 212243600640.

The previous prime is 212248276483. The next prime is 212248276609. The reversal of 212248276577 is 775672842212.

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 147858706576 + 64389570001 = 384524^2 + 253751^2 .

It is a cyclic number.

It is not a de Polignac number, because 212248276577 - 2¹⁰ = 212248275553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212248276477) 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, 2269208 + ... + 2360889.

It is an arithmetic number, because the mean of its divisors is an integer number (53063238129).

Almost surely, 2^212248276577 is an apocalyptic number.

It is an amenable number.

212248276577 is a deficient number, since it is larger than the sum of its proper divisors (4675939).

212248276577 is an equidigital number, since it uses as much as digits as its factorization.

212248276577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675938.

The product of its digits is 5268480, while the sum is 53.

The spelling of 212248276577 in words is "two hundred twelve billion, two hundred forty-eight million, two hundred seventy-six thousand, five hundred seventy-seven".