10021012087 has 2 divisors, whose sum is σ = 10021012088. Its totient is φ = 10021012086.

The previous prime is 10021012073. The next prime is 10021012109. The reversal of 10021012087 is 78021012001.

It is an a-pointer prime, because the next prime (10021012109) can be obtained adding 10021012087 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10021012087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10021013087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010506043 + 5010506044.

It is an arithmetic number, because the mean of its divisors is an integer number (5010506044).

Almost surely, 2^10021012087 is an apocalyptic number.

10021012087 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021012087 is an equidigital number, since it uses as much as digits as its factorization.

10021012087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 10021012087 its reverse (78021012001), we get a palindrome (88042024088).

The spelling of 10021012087 in words is "ten billion, twenty-one million, twelve thousand, eighty-seven".