212265087577 has 2 divisors, whose sum is σ = 212265087578. Its totient is φ = 212265087576.

The previous prime is 212265087553. The next prime is 212265087581. The reversal of 212265087577 is 775780562212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108388442176 + 103876645401 = 329224^2 + 322299^2 .

It is a cyclic number.

It is not a de Polignac number, because 212265087577 - 2¹⁹ = 212264563289 is a prime.

It is not a weakly prime, because it can be changed into another prime (212265087077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106132543788 + 106132543789.

It is an arithmetic number, because the mean of its divisors is an integer number (106132543789).

Almost surely, 2^212265087577 is an apocalyptic number.

It is an amenable number.

212265087577 is a deficient number, since it is larger than the sum of its proper divisors (1).

212265087577 is an equidigital number, since it uses as much as digits as its factorization.

212265087577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3292800, while the sum is 52.

The spelling of 212265087577 in words is "two hundred twelve billion, two hundred sixty-five million, eighty-seven thousand, five hundred seventy-seven".