20221033123 has 4 divisors (see below), whose sum is σ = 20429497480. Its totient is φ = 20012568768.

The previous prime is 20221033117. The next prime is 20221033141. The reversal of 20221033123 is 32133012202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32133012202 = 2 ⋅16066506101.

It is a cyclic number.

It is not a de Polignac number, because 20221033123 - 2²⁵ = 20187478691 is a prime.

It is a super-2 number, since 2×20221033123² (a number of 21 digits) contains 22 as substring.

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 20221033123.

It is not an unprimeable number, because it can be changed into a prime (20221033223) 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, 104232033 + ... + 104232226.

It is an arithmetic number, because the mean of its divisors is an integer number (5107374370).

Almost surely, 2^20221033123 is an apocalyptic number.

20221033123 is a deficient number, since it is larger than the sum of its proper divisors (208464357).

20221033123 is an equidigital number, since it uses as much as digits as its factorization.

20221033123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208464356.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20221033123 its reverse (32133012202), we get a palindrome (52354045325).

The spelling of 20221033123 in words is "twenty billion, two hundred twenty-one million, thirty-three thousand, one hundred twenty-three".