22011134641 has 4 divisors (see below), whose sum is σ = 22037686900. Its totient is φ = 21984582384.

The previous prime is 22011134597. The next prime is 22011134657. The reversal of 22011134641 is 14643111022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14643111022 = 2 ⋅7321555511.

It can be written as a sum of positive squares in 2 ways, for example, as 13081640625 + 8929494016 = 114375^2 + 94496^2 .

It is a cyclic number.

It is not a de Polignac number, because 22011134641 - 2²³ = 22002746033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011134681) 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, 13274886 + ... + 13276543.

It is an arithmetic number, because the mean of its divisors is an integer number (5509421725).

Almost surely, 2^22011134641 is an apocalyptic number.

It is an amenable number.

22011134641 is a deficient number, since it is larger than the sum of its proper divisors (26552259).

22011134641 is an equidigital number, since it uses as much as digits as its factorization.

22011134641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26552258.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 22011134641 its reverse (14643111022), we get a palindrome (36654245663).

The spelling of 22011134641 in words is "twenty-two billion, eleven million, one hundred thirty-four thousand, six hundred forty-one".