21233000020099 has 4 divisors (see below), whose sum is σ = 24266285737264. Its totient is φ = 18199714302936.

The previous prime is 21233000020039. The next prime is 21233000020129. The reversal of 21233000020099 is 99002000033212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21233000020099 - 2¹³ = 21233000011907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21233000020099.

It is not an unprimeable number, because it can be changed into a prime (21233000020019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516642858572 + ... + 1516642858585.

It is an arithmetic number, because the mean of its divisors is an integer number (6066571434316).

Almost surely, 2^{21233000020099} is an apocalyptic number.

21233000020099 is a deficient number, since it is larger than the sum of its proper divisors (3033285717165).

21233000020099 is an equidigital number, since it uses as much as digits as its factorization.

21233000020099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033285717164.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 21233000020099 in words is "twenty-one trillion, two hundred thirty-three billion, twenty thousand, ninety-nine".