20112003230221 has 16 divisors (see below), whose sum is σ = 23022792162304. Its totient is φ = 17210638560384.

The previous prime is 20112003230213. The next prime is 20112003230237. The reversal of 20112003230221 is 12203230021102.

It is a cyclic number.

It is not a de Polignac number, because 20112003230221 - 2³ = 20112003230213 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 (20112003230321) 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, 18312580 + ... + 19379746.

It is an arithmetic number, because the mean of its divisors is an integer number (1438924510144).

Almost surely, 2^{20112003230221} is an apocalyptic number.

It is an amenable number.

20112003230221 is a deficient number, since it is larger than the sum of its proper divisors (2910788932083).

20112003230221 is a wasteful number, since it uses less digits than its factorization.

20112003230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071580.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20112003230221 its reverse (12203230021102), we get a palindrome (32315233251323).

The spelling of 20112003230221 in words is "twenty trillion, one hundred twelve billion, three million, two hundred thirty thousand, two hundred twenty-one".