20212320012231 has 16 divisors (see below), whose sum is σ = 27358479440000. Its totient is φ = 13270615652448.

The previous prime is 20212320012211. The next prime is 20212320012289. The reversal of 20212320012231 is 13221002321202.

It is not a de Polignac number, because 20212320012231 - 2¹⁵ = 20212319979463 is a prime.

It is a super-2 number, since 2×20212320012231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20212320012198 and 20212320012207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212320012211) 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, 11069356 + ... + 12765393.

It is an arithmetic number, because the mean of its divisors is an integer number (1709904965000).

Almost surely, 2^{20212320012231} is an apocalyptic number.

20212320012231 is a deficient number, since it is larger than the sum of its proper divisors (7146159427769).

20212320012231 is a wasteful number, since it uses less digits than its factorization.

20212320012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23839038.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20212320012231 its reverse (13221002321202), we get a palindrome (33433322333433).

The spelling of 20212320012231 in words is "twenty trillion, two hundred twelve billion, three hundred twenty million, twelve thousand, two hundred thirty-one".