212077565699 has 2 divisors, whose sum is σ = 212077565700. Its totient is φ = 212077565698.

The previous prime is 212077565647. The next prime is 212077565701. The reversal of 212077565699 is 996565770212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212077565699 - 2⁸ = 212077565443 is a prime.

It is a super-2 number, since 2×212077565699² (a number of 23 digits) contains 22 as substring.

Together with 212077565701, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212077565639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106038782849 + 106038782850.

It is an arithmetic number, because the mean of its divisors is an integer number (106038782850).

Almost surely, 2^212077565699 is an apocalyptic number.

212077565699 is a deficient number, since it is larger than the sum of its proper divisors (1).

212077565699 is an equidigital number, since it uses as much as digits as its factorization.

212077565699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14288400, while the sum is 59.

The spelling of 212077565699 in words is "two hundred twelve billion, seventy-seven million, five hundred sixty-five thousand, six hundred ninety-nine".