102121212011087 has 2 divisors, whose sum is σ = 102121212011088. Its totient is φ = 102121212011086.

The previous prime is 102121212011053. The next prime is 102121212011101. The reversal of 102121212011087 is 780110212121201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102121212011087 - 2³⁰ = 102120138269263 is a prime.

It is a super-2 number, since 2×102121212011087² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102121212011017) 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, 51060606005543 + 51060606005544.

It is an arithmetic number, because the mean of its divisors is an integer number (51060606005544).

Almost surely, 2^{102121212011087} is an apocalyptic number.

102121212011087 is a deficient number, since it is larger than the sum of its proper divisors (1).

102121212011087 is an equidigital number, since it uses as much as digits as its factorization.

102121212011087 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 102121212011087 its reverse (780110212121201), we get a palindrome (882231424132288).

The spelling of 102121212011087 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred twelve million, eleven thousand, eighty-seven".