20212213212321 has 8 divisors (see below), whose sum is σ = 29022665125440. Its totient is φ = 12438285053712.

The previous prime is 20212213212283. The next prime is 20212213212343. The reversal of 20212213212321 is 12321231221202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20212213212321 - 2¹⁵ = 20212213179553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20212213212291 and 20212213212300.

It is not an unprimeable number, because it can be changed into a prime (20212213212421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259130938581 + ... + 259130938658.

It is an arithmetic number, because the mean of its divisors is an integer number (3627833140680).

Almost surely, 2^{20212213212321} is an apocalyptic number.

It is an amenable number.

20212213212321 is a deficient number, since it is larger than the sum of its proper divisors (8810451913119).

20212213212321 is a wasteful number, since it uses less digits than its factorization.

20212213212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518261877255.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 20212213212321 its reverse (12321231221202), we get a palindrome (32533444433523).

The spelling of 20212213212321 in words is "twenty trillion, two hundred twelve billion, two hundred thirteen million, two hundred twelve thousand, three hundred twenty-one".