20013210233221 has 16 divisors (see below), whose sum is σ = 20090430360000. Its totient is φ = 19936114288128.

The previous prime is 20013210233189. The next prime is 20013210233273. The reversal of 20013210233221 is 12233201231002.

It is a cyclic number.

It is not a de Polignac number, because 20013210233221 - 2⁵ = 20013210233189 is a prime.

It is a super-3 number, since 3×20013210233221³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20013210233192 and 20013210233201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013210533221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1953837526 + ... + 1953847768.

It is an arithmetic number, because the mean of its divisors is an integer number (1255651897500).

Almost surely, 2^{20013210233221} is an apocalyptic number.

It is an amenable number.

20013210233221 is a deficient number, since it is larger than the sum of its proper divisors (77220126779).

20013210233221 is a wasteful number, since it uses less digits than its factorization.

20013210233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15588.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20013210233221 its reverse (12233201231002), we get a palindrome (32246411464223).

The spelling of 20013210233221 in words is "twenty trillion, thirteen billion, two hundred ten million, two hundred thirty-three thousand, two hundred twenty-one".