22123031101 has 4 divisors (see below), whose sum is σ = 22485703804. Its totient is φ = 21760358400.

The previous prime is 22123031059. The next prime is 22123031129. The reversal of 22123031101 is 10113032122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10113032122 = 2 ⋅5056516061.

It can be written as a sum of positive squares in 2 ways, for example, as 6516525625 + 15606505476 = 80725^2 + 124926^2 .

It is a cyclic number.

It is not a de Polignac number, because 22123031101 - 2¹⁵ = 22122998333 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 (22123031191) 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, 181336260 + ... + 181336381.

It is an arithmetic number, because the mean of its divisors is an integer number (5621425951).

Almost surely, 2^22123031101 is an apocalyptic number.

It is an amenable number.

22123031101 is a deficient number, since it is larger than the sum of its proper divisors (362672703).

22123031101 is an equidigital number, since it uses as much as digits as its factorization.

22123031101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362672702.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22123031101 its reverse (10113032122), we get a palindrome (32236063223).

The spelling of 22123031101 in words is "twenty-two billion, one hundred twenty-three million, thirty-one thousand, one hundred one".