21241222303 has 16 divisors (see below), whose sum is σ = 24984610560. Its totient is φ = 17682503616.

The previous prime is 21241222297. The next prime is 21241222307. The reversal of 21241222303 is 30322214212.

It is a cyclic number.

It is not a de Polignac number, because 21241222303 - 2⁹ = 21241221791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21241222307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275550 + ... + 344107.

It is an arithmetic number, because the mean of its divisors is an integer number (1561538160).

Almost surely, 2^21241222303 is an apocalyptic number.

21241222303 is a deficient number, since it is larger than the sum of its proper divisors (3743388257).

21241222303 is an equidigital number, since it uses as much as digits as its factorization.

21241222303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619806.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21241222303 its reverse (30322214212), we get a palindrome (51563436515).

The spelling of 21241222303 in words is "twenty-one billion, two hundred forty-one million, two hundred twenty-two thousand, three hundred three".