20212213100321 has 32 divisors (see below), whose sum is σ = 23339933485056. Its totient is φ = 17322718336000.

The previous prime is 20212213100273. The next prime is 20212213100423. The reversal of 20212213100321 is 12300131221202.

It is a de Polignac number, because none of the positive numbers 2^k-20212213100321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20212213100293 and 20212213100302.

It is not an unprimeable number, because it can be changed into a prime (20212213103321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56170586 + ... + 56529276.

It is an arithmetic number, because the mean of its divisors is an integer number (729372921408).

Almost surely, 2^{20212213100321} is an apocalyptic number.

It is an amenable number.

20212213100321 is a deficient number, since it is larger than the sum of its proper divisors (3127720384735).

20212213100321 is a wasteful number, since it uses less digits than its factorization.

20212213100321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361933.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20212213100321 its reverse (12300131221202), we get a palindrome (32512344321523).

The spelling of 20212213100321 in words is "twenty trillion, two hundred twelve billion, two hundred thirteen million, one hundred thousand, three hundred twenty-one".