22122543101 has 4 divisors (see below), whose sum is σ = 22485207804. Its totient is φ = 21759878400.

The previous prime is 22122543083. The next prime is 22122543109. The reversal of 22122543101 is 10134522122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10134522122 = 2 ⋅5067261061.

It can be written as a sum of positive squares in 2 ways, for example, as 7632643225 + 14489899876 = 87365^2 + 120374^2 .

It is a cyclic number.

It is not a de Polignac number, because 22122543101 - 2²⁶ = 22055434237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122543109) 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, 181332260 + ... + 181332381.

It is an arithmetic number, because the mean of its divisors is an integer number (5621301951).

Almost surely, 2^22122543101 is an apocalyptic number.

It is an amenable number.

22122543101 is a deficient number, since it is larger than the sum of its proper divisors (362664703).

22122543101 is an equidigital number, since it uses as much as digits as its factorization.

22122543101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362664702.

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 22122543101 in words is "twenty-two billion, one hundred twenty-two million, five hundred forty-three thousand, one hundred one".