22121032244 has 6 divisors (see below), whose sum is σ = 38711806434. Its totient is φ = 11060516120.

The previous prime is 22121032223. The next prime is 22121032249. The reversal of 22121032244 is 44223012122.

It can be written as a sum of positive squares in only one way, i.e., 11922456100 + 10198576144 = 109190^2 + 100988^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121032249) 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 as a sum of consecutive naturals, namely, 2765129027 + ... + 2765129034.

It is an arithmetic number, because the mean of its divisors is an integer number (6451967739).

Almost surely, 2^22121032244 is an apocalyptic number.

It is an amenable number.

22121032244 is a deficient number, since it is larger than the sum of its proper divisors (16590774190).

22121032244 is a wasteful number, since it uses less digits than its factorization.

22121032244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5530258065 (or 5530258063 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22121032244 its reverse (44223012122), we get a palindrome (66344044366).

The spelling of 22121032244 in words is "twenty-two billion, one hundred twenty-one million, thirty-two thousand, two hundred forty-four".