21222123301 has 8 divisors (see below), whose sum is σ = 21269937600. Its totient is φ = 21174347040.

The previous prime is 21222123289. The next prime is 21222123317. The reversal of 21222123301 is 10332122212.

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 21222123301 - 2⁵ = 21222123269 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 (21222123341) 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, 1306890 + ... + 1323028.

It is an arithmetic number, because the mean of its divisors is an integer number (2658742200).

Almost surely, 2^21222123301 is an apocalyptic number.

It is an amenable number.

21222123301 is a deficient number, since it is larger than the sum of its proper divisors (47814299).

21222123301 is a wasteful number, since it uses less digits than its factorization.

21222123301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19019.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21222123301 its reverse (10332122212), we get a palindrome (31554245513).

The spelling of 21222123301 in words is "twenty-one billion, two hundred twenty-two million, one hundred twenty-three thousand, three hundred one".