22104244420 has 12 divisors (see below), whose sum is σ = 46418913324. Its totient is φ = 8841697760.

The previous prime is 22104244403. The next prime is 22104244423. The reversal of 22104244420 is 2444240122.

It can be written as a sum of positive squares in 2 ways, for example, as 9151983556 + 12952260864 = 95666^2 + 113808^2 .

It is a super-2 number, since 2×22104244420² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22104244423) 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, 552606091 + ... + 552606130.

It is an arithmetic number, because the mean of its divisors is an integer number (3868242777).

Almost surely, 2^22104244420 is an apocalyptic number.

22104244420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22104244420 is an abundant number, since it is smaller than the sum of its proper divisors (24314668904).

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

22104244420 is a wasteful number, since it uses less digits than its factorization.

22104244420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105212230 (or 1105212228 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 22104244420 its reverse (2444240122), we get a palindrome (24548484542).

The spelling of 22104244420 in words is "twenty-two billion, one hundred four million, two hundred forty-four thousand, four hundred twenty".