212120201101087 has 2 divisors, whose sum is σ = 212120201101088. Its totient is φ = 212120201101086.

The previous prime is 212120201101051. The next prime is 212120201101097. The reversal of 212120201101087 is 780101102021212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212120201101087 - 2¹¹ = 212120201099039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212120201101097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060100550543 + 106060100550544.

It is an arithmetic number, because the mean of its divisors is an integer number (106060100550544).

Almost surely, 2^{212120201101087} is an apocalyptic number.

212120201101087 is a deficient number, since it is larger than the sum of its proper divisors (1).

212120201101087 is an equidigital number, since it uses as much as digits as its factorization.

212120201101087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 28.

Adding to 212120201101087 its reverse (780101102021212), we get a palindrome (992221303122299).

The spelling of 212120201101087 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred one million, one hundred one thousand, eighty-seven".