212560226663 has 4 divisors (see below), whose sum is σ = 214623918288. Its totient is φ = 210496535040.

The previous prime is 212560226653. The next prime is 212560226677. The reversal of 212560226663 is 366622065212.

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

It is not a de Polignac number, because 212560226663 - 2¹⁰ = 212560225639 is a prime.

It is a super-2 number, since 2×212560226663² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212560226663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212560226653) 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, 1031845658 + ... + 1031845863.

It is an arithmetic number, because the mean of its divisors is an integer number (53655979572).

Almost surely, 2^212560226663 is an apocalyptic number.

212560226663 is a deficient number, since it is larger than the sum of its proper divisors (2063691625).

212560226663 is a wasteful number, since it uses less digits than its factorization.

212560226663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063691624.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 212560226663 in words is "two hundred twelve billion, five hundred sixty million, two hundred twenty-six thousand, six hundred sixty-three".