10000021068 has 36 divisors (see below), whose sum is σ = 25286214408. Its totient is φ = 3332234880.

The previous prime is 10000021067. The next prime is 10000021069. The reversal of 10000021068 is 86012000001.

It is an interprime number because it is at equal distance from previous prime (10000021067) and next prime (10000021069).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 10000021068.

It is not an unprimeable number, because it can be changed into a prime (10000021063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67855 + ... + 156857.

Almost surely, 2^10000021068 is an apocalyptic number.

10000021068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

10000021068 is an abundant number, since it is smaller than the sum of its proper divisors (15286193340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10000021068 is a wasteful number, since it uses less digits than its factorization.

10000021068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92134 (or 92129 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 10000021068 its reverse (86012000001), we get a palindrome (96012021069).

The spelling of 10000021068 in words is "ten billion, twenty-one thousand, sixty-eight".