22244200272 has 120 divisors (see below), whose sum is σ = 71235440640. Its totient is φ = 6347508480.

The previous prime is 22244200261. The next prime is 22244200283. The reversal of 22244200272 is 27200244222.

It is an interprime number because it is at equal distance from previous prime (22244200261) and next prime (22244200283).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 814129 + ... + 841007.

It is an arithmetic number, because the mean of its divisors is an integer number (593628672).

Almost surely, 2^22244200272 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 22244200272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35617720320).

22244200272 is an abundant number, since it is smaller than the sum of its proper divisors (48991240368).

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

22244200272 is a wasteful number, since it uses less digits than its factorization.

22244200272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27721 (or 27712 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

Adding to 22244200272 its reverse (27200244222), we get a palindrome (49444444494).

The spelling of 22244200272 in words is "twenty-two billion, two hundred forty-four million, two hundred thousand, two hundred seventy-two".