20211422223 has 4 divisors (see below), whose sum is σ = 26948562968. Its totient is φ = 13474281480.

The previous prime is 20211422183. The next prime is 20211422243. The reversal of 20211422223 is 32222411202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20211422223 - 2¹² = 20211418127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20211422223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211422243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3368570368 + ... + 3368570373.

It is an arithmetic number, because the mean of its divisors is an integer number (6737140742).

Almost surely, 2^20211422223 is an apocalyptic number.

20211422223 is a deficient number, since it is larger than the sum of its proper divisors (6737140745).

20211422223 is an equidigital number, since it uses as much as digits as its factorization.

20211422223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6737140744.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20211422223 its reverse (32222411202), we get a palindrome (52433833425).

The spelling of 20211422223 in words is "twenty billion, two hundred eleven million, four hundred twenty-two thousand, two hundred twenty-three".