22094749281 has 16 divisors (see below), whose sum is σ = 32252200128. Its totient is φ = 13343097600.

The previous prime is 22094749253. The next prime is 22094749283. The reversal of 22094749281 is 18294749022.

It is a happy number.

It is not a de Polignac number, because 22094749281 - 2⁵ = 22094749249 is a prime.

It is a super-2 number, since 2×22094749281² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22094749281.

It is not an unprimeable number, because it can be changed into a prime (22094749283) 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 15 ways as a sum of consecutive naturals, for example, 1182076 + ... + 1200621.

It is an arithmetic number, because the mean of its divisors is an integer number (2015762508).

Almost surely, 2^22094749281 is an apocalyptic number.

It is an amenable number.

22094749281 is a deficient number, since it is larger than the sum of its proper divisors (10157450847).

22094749281 is a wasteful number, since it uses less digits than its factorization.

22094749281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382992.

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 22094749281 in words is "twenty-two billion, ninety-four million, seven hundred forty-nine thousand, two hundred eighty-one".