20833264850221 has 16 divisors (see below), whose sum is σ = 21559869777600. Its totient is φ = 20117947132800.

The previous prime is 20833264850201. The next prime is 20833264850239. The reversal of 20833264850221 is 12205846233802.

It is a cyclic number.

It is not a de Polignac number, because 20833264850221 - 2⁷ = 20833264850093 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 (20833264850201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3635686 + ... + 7408423.

It is an arithmetic number, because the mean of its divisors is an integer number (1347491861100).

Almost surely, 2^{20833264850221} is an apocalyptic number.

It is an amenable number.

20833264850221 is a deficient number, since it is larger than the sum of its proper divisors (726604927379).

20833264850221 is a wasteful number, since it uses less digits than its factorization.

20833264850221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11044620.

The product of its (nonzero) digits is 1105920, while the sum is 46.

The spelling of 20833264850221 in words is "twenty trillion, eight hundred thirty-three billion, two hundred sixty-four million, eight hundred fifty thousand, two hundred twenty-one".