12110021087 has 2 divisors, whose sum is σ = 12110021088. Its totient is φ = 12110021086.

The previous prime is 12110021083. The next prime is 12110021113. The reversal of 12110021087 is 78012001121.

12110021087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12110021087 - 2² = 12110021083 is a prime.

It is a super-2 number, since 2×12110021087² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12110021083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055010543 + 6055010544.

It is an arithmetic number, because the mean of its divisors is an integer number (6055010544).

Almost surely, 2^12110021087 is an apocalyptic number.

12110021087 is a deficient number, since it is larger than the sum of its proper divisors (1).

12110021087 is an equidigital number, since it uses as much as digits as its factorization.

12110021087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 23.

The spelling of 12110021087 in words is "twelve billion, one hundred ten million, twenty-one thousand, eighty-seven".