22201442244 has 18 divisors (see below), whose sum is σ = 56120312430. Its totient is φ = 7400480736.

The previous prime is 22201442243. The next prime is 22201442303. The reversal of 22201442244 is 44224410222.

22201442244 is a `hidden beast` number, since 2 + 220 + 14 + 422 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21091752900 + 1109689344 = 145230^2 + 33312^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (22201442243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 308353329 + ... + 308353400.

It is an arithmetic number, because the mean of its divisors is an integer number (3117795135).

Almost surely, 2^22201442244 is an apocalyptic number.

It is an amenable number.

22201442244 is an abundant number, since it is smaller than the sum of its proper divisors (33918870186).

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

22201442244 is a wasteful number, since it uses less digits than its factorization.

22201442244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616706739 (or 616706734 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 22201442244 its reverse (44224410222), we get a palindrome (66425852466).

The spelling of 22201442244 in words is "twenty-two billion, two hundred one million, four hundred forty-two thousand, two hundred forty-four".