10021099999 has 8 divisors (see below), whose sum is σ = 10157790240. Its totient is φ = 9885167616.

The previous prime is 10021099987. The next prime is 10021100009. The reversal of 10021099999 is 99999012001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10021099999 - 2¹¹ = 10021097951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021099919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162814 + ... + 215755.

It is an arithmetic number, because the mean of its divisors is an integer number (1269723780).

Almost surely, 2^10021099999 is an apocalyptic number.

10021099999 is a deficient number, since it is larger than the sum of its proper divisors (136690241).

10021099999 is a wasteful number, since it uses less digits than its factorization.

10021099999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378929.

The product of its (nonzero) digits is 118098, while the sum is 49.

The spelling of 10021099999 in words is "ten billion, twenty-one million, ninety-nine thousand, nine hundred ninety-nine".