21223210223333 has 4 divisors (see below), whose sum is σ = 21223268737440. Its totient is φ = 21223151709228.

The previous prime is 21223210223321. The next prime is 21223210223377. The reversal of 21223210223333 is 33332201232212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21223210223333 - 2⁶ = 21223210223269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21223210223296 and 21223210223305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21223210223233) 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, 28709585 + ... + 29439542.

It is an arithmetic number, because the mean of its divisors is an integer number (5305817184360).

Almost surely, 2^{21223210223333} is an apocalyptic number.

It is an amenable number.

21223210223333 is a deficient number, since it is larger than the sum of its proper divisors (58514107).

21223210223333 is an equidigital number, since it uses as much as digits as its factorization.

21223210223333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58514106.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 21223210223333 its reverse (33332201232212), we get a palindrome (54555411455545).

The spelling of 21223210223333 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred ten million, two hundred twenty-three thousand, three hundred thirty-three".