22056221144 has 8 divisors (see below), whose sum is σ = 41355414660. Its totient is φ = 11028110568.

The previous prime is 22056221113. The next prime is 22056221149. The reversal of 22056221144 is 44112265022.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22056221149) 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 as a sum of consecutive naturals, namely, 1378513814 + ... + 1378513829.

Almost surely, 2^22056221144 is an apocalyptic number.

It is an amenable number.

22056221144 is a deficient number, since it is larger than the sum of its proper divisors (19299193516).

22056221144 is a wasteful number, since it uses less digits than its factorization.

22056221144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757027649 (or 2757027645 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 22056221144 its reverse (44112265022), we get a palindrome (66168486166).

The spelling of 22056221144 in words is "twenty-two billion, fifty-six million, two hundred twenty-one thousand, one hundred forty-four".