22444311220 has 48 divisors (see below), whose sum is σ = 47867516928. Its totient is φ = 8838910080.

The previous prime is 22444311187. The next prime is 22444311247. The reversal of 22444311220 is 2211344422.

It is a super-2 number, since 2×22444311220² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299014 + ... + 366466.

It is an arithmetic number, because the mean of its divisors is an integer number (997239936).

Almost surely, 2^22444311220 is an apocalyptic number.

22444311220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22444311220 is an abundant number, since it is smaller than the sum of its proper divisors (25423205708).

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

22444311220 is a wasteful number, since it uses less digits than its factorization.

22444311220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67720 (or 67718 counting only the distinct ones).

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

Adding to 22444311220 its reverse (2211344422), we get a palindrome (24655655642).

The spelling of 22444311220 in words is "twenty-two billion, four hundred forty-four million, three hundred eleven thousand, two hundred twenty".