212102001227 has 2 divisors, whose sum is σ = 212102001228. Its totient is φ = 212102001226.

The previous prime is 212102001187. The next prime is 212102001233. The reversal of 212102001227 is 722100201212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212102001227 - 2¹² = 212101997131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212102001199 and 212102001208.

It is not a weakly prime, because it can be changed into another prime (212102001257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106051000613 + 106051000614.

It is an arithmetic number, because the mean of its divisors is an integer number (106051000614).

Almost surely, 2^212102001227 is an apocalyptic number.

212102001227 is a deficient number, since it is larger than the sum of its proper divisors (1).

212102001227 is an equidigital number, since it uses as much as digits as its factorization.

212102001227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 212102001227 its reverse (722100201212), we get a palindrome (934202202439).

The spelling of 212102001227 in words is "two hundred twelve billion, one hundred two million, one thousand, two hundred twenty-seven".