22161181141 has 8 divisors (see below), whose sum is σ = 24955699968. Its totient is φ = 19496640000.

The previous prime is 22161181127. The next prime is 22161181241. The reversal of 22161181141 is 14118116122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22161181141 is a prime.

It is a super-2 number, since 2×22161181141² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22161181121) 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 7 ways as a sum of consecutive naturals, for example, 32494060 + ... + 32494741.

It is an arithmetic number, because the mean of its divisors is an integer number (3119462496).

Almost surely, 2^22161181141 is an apocalyptic number.

It is an amenable number.

22161181141 is a deficient number, since it is larger than the sum of its proper divisors (2794518827).

22161181141 is a wasteful number, since it uses less digits than its factorization.

22161181141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64988843.

The product of its digits is 768, while the sum is 28.

Adding to 22161181141 its reverse (14118116122), we get a palindrome (36279297263).

It can be divided in two parts, 22161 and 181141, that added together give a palindrome (203302).

The spelling of 22161181141 in words is "twenty-two billion, one hundred sixty-one million, one hundred eighty-one thousand, one hundred forty-one".