22201231444 has 54 divisors (see below), whose sum is σ = 46271617434. Its totient is φ = 9293387040.

The previous prime is 22201231441. The next prime is 22201231463. The reversal of 22201231444 is 44413210222.

It can be written as a sum of positive squares in only one way, i.e., 15982016400 + 6219215044 = 126420^2 + 78862^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201231441) 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 17 ways as a sum of consecutive naturals, for example, 331774 + ... + 393034.

Almost surely, 2^22201231444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22201231444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23135808717).

22201231444 is an abundant number, since it is smaller than the sum of its proper divisors (24070385990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22201231444 is a wasteful number, since it uses less digits than its factorization.

22201231444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61365 (or 61313 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 22201231444 its reverse (44413210222), we get a palindrome (66614441666).

The spelling of 22201231444 in words is "twenty-two billion, two hundred one million, two hundred thirty-one thousand, four hundred forty-four".