10121102020087 has 2 divisors, whose sum is σ = 10121102020088. Its totient is φ = 10121102020086.

The previous prime is 10121102020049. The next prime is 10121102020129. The reversal of 10121102020087 is 78002020112101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10121102020087 - 2³⁹ = 9571346206199 is a prime.

It is a super-2 number, since 2×10121102020087² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10121102020027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060551010043 + 5060551010044.

It is an arithmetic number, because the mean of its divisors is an integer number (5060551010044).

Almost surely, 2^{10121102020087} is an apocalyptic number.

10121102020087 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121102020087 is an equidigital number, since it uses as much as digits as its factorization.

10121102020087 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 25.

Adding to 10121102020087 its reverse (78002020112101), we get a palindrome (88123122132188).

The spelling of 10121102020087 in words is "ten trillion, one hundred twenty-one billion, one hundred two million, twenty thousand, eighty-seven".