212102111201287 has 2 divisors, whose sum is σ = 212102111201288. Its totient is φ = 212102111201286.

The previous prime is 212102111201177. The next prime is 212102111201291. The reversal of 212102111201287 is 782102111201212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212102111201287 - 2¹⁹ = 212102110676999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212102111208287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106051055600643 + 106051055600644.

It is an arithmetic number, because the mean of its divisors is an integer number (106051055600644).

Almost surely, 2^{212102111201287} is an apocalyptic number.

212102111201287 is a deficient number, since it is larger than the sum of its proper divisors (1).

212102111201287 is an equidigital number, since it uses as much as digits as its factorization.

212102111201287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 31.

Adding to 212102111201287 its reverse (782102111201212), we get a palindrome (994204222402499).

The spelling of 212102111201287 in words is "two hundred twelve trillion, one hundred two billion, one hundred eleven million, two hundred one thousand, two hundred eighty-seven".