21042222224003 has 2 divisors, whose sum is σ = 21042222224004. Its totient is φ = 21042222224002.

The previous prime is 21042222223993. The next prime is 21042222224027. The reversal of 21042222224003 is 30042222224012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21042222224003 - 2⁸ = 21042222223747 is a prime.

It is a super-2 number, since 2×21042222224003² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21042222224033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10521111112001 + 10521111112002.

It is an arithmetic number, because the mean of its divisors is an integer number (10521111112002).

Almost surely, 2^{21042222224003} is an apocalyptic number.

21042222224003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21042222224003 is an equidigital number, since it uses as much as digits as its factorization.

21042222224003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 21042222224003 its reverse (30042222224012), we get a palindrome (51084444448015).

Subtracting 21042222224003 from its reverse (30042222224012), we obtain a palindrome (9000000000009).

The spelling of 21042222224003 in words is "twenty-one trillion, forty-two billion, two hundred twenty-two million, two hundred twenty-four thousand, three".