212560226677 has 2 divisors, whose sum is σ = 212560226678. Its totient is φ = 212560226676.

The previous prime is 212560226653. The next prime is 212560226687. The reversal of 212560226677 is 776622065212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209996728516 + 2563498161 = 458254^2 + 50631^2 .

It is a cyclic number.

It is not a de Polignac number, because 212560226677 - 2¹¹ = 212560224629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212560226687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106280113338 + 106280113339.

It is an arithmetic number, because the mean of its divisors is an integer number (106280113339).

Almost surely, 2^212560226677 is an apocalyptic number.

It is an amenable number.

212560226677 is a deficient number, since it is larger than the sum of its proper divisors (1).

212560226677 is an equidigital number, since it uses as much as digits as its factorization.

212560226677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 212560226677 in words is "two hundred twelve billion, five hundred sixty million, two hundred twenty-six thousand, six hundred seventy-seven".