20221220222323 has 4 divisors (see below), whose sum is σ = 20429686410280. Its totient is φ = 20012754034368.

The previous prime is 20221220222309. The next prime is 20221220222351. The reversal of 20221220222323 is 32322202212202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20221220222323 is a prime.

It is a super-3 number, since 3×20221220222323³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221220222363) 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, 104233093833 + ... + 104233094026.

It is an arithmetic number, because the mean of its divisors is an integer number (5107421602570).

Almost surely, 2^{20221220222323} is an apocalyptic number.

20221220222323 is a deficient number, since it is larger than the sum of its proper divisors (208466187957).

20221220222323 is an equidigital number, since it uses as much as digits as its factorization.

20221220222323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208466187956.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20221220222323 its reverse (32322202212202), we get a palindrome (52543422434525).

The spelling of 20221220222323 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twenty-two thousand, three hundred twenty-three".