12121021759087 has 2 divisors, whose sum is σ = 12121021759088. Its totient is φ = 12121021759086.

The previous prime is 12121021759061. The next prime is 12121021759097. The reversal of 12121021759087 is 78095712012121.

12121021759087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12121021759087 - 2⁴³ = 3324928736879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12121021759057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060510879543 + 6060510879544.

It is an arithmetic number, because the mean of its divisors is an integer number (6060510879544).

Almost surely, 2^{12121021759087} is an apocalyptic number.

12121021759087 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121021759087 is an equidigital number, since it uses as much as digits as its factorization.

12121021759087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 46.

The spelling of 12121021759087 in words is "twelve trillion, one hundred twenty-one billion, twenty-one million, seven hundred fifty-nine thousand, eighty-seven".