20222121200023 has 4 divisors (see below), whose sum is σ = 20224566742360. Its totient is φ = 20219675657688.

The previous prime is 20222121200011. The next prime is 20222121200087. The reversal of 20222121200023 is 32000212122202.

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-20222121200023 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 (20222121200003) 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, 1222758765 + ... + 1222775302.

It is an arithmetic number, because the mean of its divisors is an integer number (5056141685590).

Almost surely, 2^{20222121200023} is an apocalyptic number.

20222121200023 is a deficient number, since it is larger than the sum of its proper divisors (2445542337).

20222121200023 is an equidigital number, since it uses as much as digits as its factorization.

20222121200023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445542336.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20222121200023 its reverse (32000212122202), we get a palindrome (52222333322225).

The spelling of 20222121200023 in words is "twenty trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred thousand, twenty-three".