22541222145 has 64 divisors (see below), whose sum is σ = 39458571264. Its totient is φ = 10921236480.

The previous prime is 22541222057. The next prime is 22541222149. The reversal of 22541222145 is 54122214522.

It is not a de Polignac number, because 22541222145 - 2⁷ = 22541222017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22541222149) 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 63 ways as a sum of consecutive naturals, for example, 7699672 + ... + 7702598.

It is an arithmetic number, because the mean of its divisors is an integer number (616540176).

Almost surely, 2^22541222145 is an apocalyptic number.

It is an amenable number.

22541222145 is a deficient number, since it is larger than the sum of its proper divisors (16917349119).

22541222145 is a wasteful number, since it uses less digits than its factorization.

22541222145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562.

The product of its digits is 12800, while the sum is 30.

Adding to 22541222145 its reverse (54122214522), we get a palindrome (76663436667).

The spelling of 22541222145 in words is "twenty-two billion, five hundred forty-one million, two hundred twenty-two thousand, one hundred forty-five".