20221223233 has 4 divisors (see below), whose sum is σ = 21285498160. Its totient is φ = 19156948308.

The previous prime is 20221223227. The next prime is 20221223249. The reversal of 20221223233 is 33232212202.

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 a cyclic number.

It is not a de Polignac number, because 20221223233 - 2¹³ = 20221215041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221221233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532137435 + ... + 532137472.

It is an arithmetic number, because the mean of its divisors is an integer number (5321374540).

Almost surely, 2^20221223233 is an apocalyptic number.

It is an amenable number.

20221223233 is a deficient number, since it is larger than the sum of its proper divisors (1064274927).

20221223233 is a wasteful number, since it uses less digits than its factorization.

20221223233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064274926.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20221223233 its reverse (33232212202), we get a palindrome (53453435435).

The spelling of 20221223233 in words is "twenty billion, two hundred twenty-one million, two hundred twenty-three thousand, two hundred thirty-three".