20221201223 has 4 divisors (see below), whose sum is σ = 20410184520. Its totient is φ = 20032217928.

The previous prime is 20221201219. The next prime is 20221201243. The reversal of 20221201223 is 32210212202.

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

It is a cyclic number.

It is not a de Polignac number, because 20221201223 - 2² = 20221201219 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 (20221201243) 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, 94491488 + ... + 94491701.

It is an arithmetic number, because the mean of its divisors is an integer number (5102546130).

Almost surely, 2^20221201223 is an apocalyptic number.

20221201223 is a deficient number, since it is larger than the sum of its proper divisors (188983297).

20221201223 is a wasteful number, since it uses less digits than its factorization.

20221201223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188983296.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20221201223 its reverse (32210212202), we get a palindrome (52431413425).

The spelling of 20221201223 in words is "twenty billion, two hundred twenty-one million, two hundred one thousand, two hundred twenty-three".