21223213200331 has 4 divisors (see below), whose sum is σ = 21223226225032. Its totient is φ = 21223200175632.

The previous prime is 21223213200271. The next prime is 21223213200401. The reversal of 21223213200331 is 13300231232212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21223213200331 - 2²³ = 21223204811723 is a prime.

It is a super-2 number, since 2×21223213200331² (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 = 21223213200296 and 21223213200305.

It is not an unprimeable number, because it can be changed into a prime (21223213207331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3648306 + ... + 7467031.

It is an arithmetic number, because the mean of its divisors is an integer number (5305806556258).

Almost surely, 2^{21223213200331} is an apocalyptic number.

21223213200331 is a deficient number, since it is larger than the sum of its proper divisors (13024701).

21223213200331 is a wasteful number, since it uses less digits than its factorization.

21223213200331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13024700.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21223213200331 its reverse (13300231232212), we get a palindrome (34523444432543).

The spelling of 21223213200331 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred thirteen million, two hundred thousand, three hundred thirty-one".