2111212010087 has 2 divisors, whose sum is σ = 2111212010088. Its totient is φ = 2111212010086.

The previous prime is 2111212010069. The next prime is 2111212010111. The reversal of 2111212010087 is 7800102121112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111212010087 - 2⁶ = 2111212010023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111212010387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055606005043 + 1055606005044.

It is an arithmetic number, because the mean of its divisors is an integer number (1055606005044).

Almost surely, 2^{2111212010087} is an apocalyptic number.

2111212010087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111212010087 is an equidigital number, since it uses as much as digits as its factorization.

2111212010087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 26.

Adding to 2111212010087 its reverse (7800102121112), we get a palindrome (9911314131199).

The spelling of 2111212010087 in words is "two trillion, one hundred eleven billion, two hundred twelve million, ten thousand, eighty-seven".