22100121224 has 16 divisors (see below), whose sum is σ = 41451785100. Its totient is φ = 11046311872.

The previous prime is 22100121217. The next prime is 22100121229. The reversal of 22100121224 is 42212100122.

It can be written as a sum of positive squares in 2 ways, for example, as 21408957124 + 691164100 = 146318^2 + 26290^2 .

It is not an unprimeable number, because it can be changed into a prime (22100121229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443459 + ... + 490770.

Almost surely, 2^22100121224 is an apocalyptic number.

It is an amenable number.

22100121224 is a deficient number, since it is larger than the sum of its proper divisors (19351663876).

22100121224 is a wasteful number, since it uses less digits than its factorization.

22100121224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937192 (or 937188 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22100121224 its reverse (42212100122), we get a palindrome (64312221346).

The spelling of 22100121224 in words is "twenty-two billion, one hundred million, one hundred twenty-one thousand, two hundred twenty-four".