20021202200999 has 4 divisors (see below), whose sum is σ = 20028806154336. Its totient is φ = 20013598247664.

The previous prime is 20021202200957. The next prime is 20021202201031. The reversal of 20021202200999 is 99900220212002.

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 20021202200999 - 2¹⁶ = 20021202135463 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 (20021202230999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3801972719 + ... + 3801977984.

It is an arithmetic number, because the mean of its divisors is an integer number (5007201538584).

Almost surely, 2^{20021202200999} is an apocalyptic number.

20021202200999 is a deficient number, since it is larger than the sum of its proper divisors (7603953337).

20021202200999 is an equidigital number, since it uses as much as digits as its factorization.

20021202200999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7603953336.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 20021202200999 in words is "twenty trillion, twenty-one billion, two hundred two million, two hundred thousand, nine hundred ninety-nine".