10212009999 has 8 divisors (see below), whose sum is σ = 13616644272. Its totient is φ = 6807691200.

The previous prime is 10212009989. The next prime is 10212010001. The reversal of 10212009999 is 99990021201.

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

It is not a de Polignac number, because 10212009999 - 2²⁴ = 10195232783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10212009999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212009979) 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, 11437 + ... + 143369.

It is an arithmetic number, because the mean of its divisors is an integer number (1702080534).

Almost surely, 2^10212009999 is an apocalyptic number.

10212009999 is a deficient number, since it is larger than the sum of its proper divisors (3404634273).

10212009999 is a wasteful number, since it uses less digits than its factorization.

10212009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157737.

The product of its (nonzero) digits is 26244, while the sum is 42.

The spelling of 10212009999 in words is "ten billion, two hundred twelve million, nine thousand, nine hundred ninety-nine".