22444444444220 has 48 divisors (see below), whose sum is σ = 47602291464000. Its totient is φ = 8888460979200.

The previous prime is 22444444444199. The next prime is 22444444444273. The reversal of 22444444444220 is 2244444444422.

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, 43474361 + ... + 43987599.

It is an arithmetic number, because the mean of its divisors is an integer number (991714405500).

Almost surely, 2^{22444444444220} is an apocalyptic number.

22444444444220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22444444444220 is an abundant number, since it is smaller than the sum of its proper divisors (25157847019780).

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

22444444444220 is a wasteful number, since it uses less digits than its factorization.

22444444444220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534998 (or 534996 counting only the distinct ones).

The product of its (nonzero) digits is 4194304, while the sum is 44.

Adding to 22444444444220 its reverse (2244444444422), we get a palindrome (24688888888642).

It can be divided in two parts, 224 and 44444444220, that added together give a palindrome (44444444444).

The spelling of 22444444444220 in words is "twenty-two trillion, four hundred forty-four billion, four hundred forty-four million, four hundred forty-four thousand, two hundred twenty".