21222323301 has 4 divisors (see below), whose sum is σ = 28296431072. Its totient is φ = 14148215532.

The previous prime is 21222323293. The next prime is 21222323321. The reversal of 21222323301 is 10332322212.

It is a happy number.

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 not a de Polignac number, because 21222323301 - 2³ = 21222323293 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 (21222323321) 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 in 3 ways as a sum of consecutive naturals, for example, 3537053881 + ... + 3537053886.

It is an arithmetic number, because the mean of its divisors is an integer number (7074107768).

Almost surely, 2^21222323301 is an apocalyptic number.

It is an amenable number.

21222323301 is a deficient number, since it is larger than the sum of its proper divisors (7074107771).

21222323301 is an equidigital number, since it uses as much as digits as its factorization.

21222323301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7074107770.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21222323301 its reverse (10332322212), we get a palindrome (31554645513).

The spelling of 21222323301 in words is "twenty-one billion, two hundred twenty-two million, three hundred twenty-three thousand, three hundred one".