10012121002087 has 2 divisors, whose sum is σ = 10012121002088. Its totient is φ = 10012121002086.

The previous prime is 10012121002043. The next prime is 10012121002153. The reversal of 10012121002087 is 78020012121001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10012121002087 - 2⁷ = 10012121001959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10012121006087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006060501043 + 5006060501044.

It is an arithmetic number, because the mean of its divisors is an integer number (5006060501044).

Almost surely, 2^{10012121002087} is an apocalyptic number.

10012121002087 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012121002087 is an equidigital number, since it uses as much as digits as its factorization.

10012121002087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 10012121002087 its reverse (78020012121001), we get a palindrome (88032133123088).

The spelling of 10012121002087 in words is "ten trillion, twelve billion, one hundred twenty-one million, two thousand, eighty-seven".