21422222303 has 8 divisors (see below), whose sum is σ = 21681813600. Its totient is φ = 21163051008.

The previous prime is 21422222279. The next prime is 21422222329. The reversal of 21422222303 is 30322222412.

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

It is a cyclic number.

It is not a de Polignac number, because 21422222303 - 2⁸ = 21422222047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21422222363) 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, 1763 + ... + 206996.

It is an arithmetic number, because the mean of its divisors is an integer number (2710226700).

Almost surely, 2^21422222303 is an apocalyptic number.

21422222303 is a deficient number, since it is larger than the sum of its proper divisors (259591297).

21422222303 is a wasteful number, since it uses less digits than its factorization.

21422222303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210001.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 21422222303 its reverse (30322222412), we get a palindrome (51744444715).

The spelling of 21422222303 in words is "twenty-one billion, four hundred twenty-two million, two hundred twenty-two thousand, three hundred three".