22201055444 has 12 divisors (see below), whose sum is σ = 40191566100. Its totient is φ = 10717750848.

The previous prime is 22201055441. The next prime is 22201055447. The reversal of 22201055444 is 44455010222.

It is an interprime number because it is at equal distance from previous prime (22201055441) and next prime (22201055447).

It can be written as a sum of positive squares in 2 ways, for example, as 5550250000 + 16650805444 = 74500^2 + 129038^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201055441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95694089 + ... + 95694320.

It is an arithmetic number, because the mean of its divisors is an integer number (3349297175).

Almost surely, 2^22201055444 is an apocalyptic number.

It is an amenable number.

22201055444 is a deficient number, since it is larger than the sum of its proper divisors (17990510656).

22201055444 is a wasteful number, since it uses less digits than its factorization.

22201055444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191388442 (or 191388440 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 22201055444 its reverse (44455010222), we get a palindrome (66656065666).

The spelling of 22201055444 in words is "twenty-two billion, two hundred one million, fifty-five thousand, four hundred forty-four".