12000099000021 has 32 divisors (see below), whose sum is σ = 17627377966080. Its totient is φ = 7261036524720.

The previous prime is 12000098999947. The next prime is 12000099000053.

12000099000021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12000099000021 - 2⁹ = 12000098999509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12000098999955 and 12000099000000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000099000821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44136 + ... + 4899198.

It is an arithmetic number, because the mean of its divisors is an integer number (550855561440).

Almost surely, 2^{12000099000021} is an apocalyptic number.

12000099000021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12000099000021 is a deficient number, since it is larger than the sum of its proper divisors (5627278966059).

12000099000021 is an equidigital number, since it uses as much as digits as its factorization.

12000099000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4855718 (or 4855696 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The spelling of 12000099000021 in words is "twelve trillion, ninety-nine million, twenty-one", and thus it is an aban number and an uban number.