211210102121087 has 2 divisors, whose sum is σ = 211210102121088. Its totient is φ = 211210102121086.

The previous prime is 211210102120999. The next prime is 211210102121131. The reversal of 211210102121087 is 780121201012112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211210102121087 - 2⁴⁰ = 210110590493311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211210102121287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105605051060543 + 105605051060544.

It is an arithmetic number, because the mean of its divisors is an integer number (105605051060544).

Almost surely, 2^{211210102121087} is an apocalyptic number.

211210102121087 is a deficient number, since it is larger than the sum of its proper divisors (1).

211210102121087 is an equidigital number, since it uses as much as digits as its factorization.

211210102121087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 29.

Adding to 211210102121087 its reverse (780121201012112), we get a palindrome (991331303133199).

The spelling of 211210102121087 in words is "two hundred eleven trillion, two hundred ten billion, one hundred two million, one hundred twenty-one thousand, eighty-seven".