10012499109821 has 8 divisors (see below), whose sum is σ = 11350201420320. Its totient is φ = 8755869666672.

The previous prime is 10012499109803. The next prime is 10012499109829. The reversal of 10012499109821 is 12890199421001.

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 10012499109821 - 2¹⁴ = 10012499093437 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 (10012499109829) 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, 20268216575 + ... + 20268217068.

It is an arithmetic number, because the mean of its divisors is an integer number (1418775177540).

Almost surely, 2^{10012499109821} is an apocalyptic number.

It is an amenable number.

10012499109821 is a deficient number, since it is larger than the sum of its proper divisors (1337702310499).

10012499109821 is a wasteful number, since it uses less digits than its factorization.

10012499109821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40536433675.

The product of its (nonzero) digits is 93312, while the sum is 47.

The spelling of 10012499109821 in words is "ten trillion, twelve billion, four hundred ninety-nine million, one hundred nine thousand, eight hundred twenty-one".