22002224420 has 96 divisors (see below), whose sum is σ = 51830779392. Its totient is φ = 7776000000.

The previous prime is 22002224407. The next prime is 22002224437. The reversal of 22002224420 is 2442220022.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22002224392 and 22002224401.

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 31 ways as a sum of consecutive naturals, for example, 2439920 + ... + 2448920.

It is an arithmetic number, because the mean of its divisors is an integer number (539903952).

Almost surely, 2^22002224420 is an apocalyptic number.

22002224420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22002224420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25915389696).

22002224420 is an abundant number, since it is smaller than the sum of its proper divisors (29828554972).

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

22002224420 is a wasteful number, since it uses less digits than its factorization.

22002224420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9333 (or 9331 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 22002224420 its reverse (2442220022), we get a palindrome (24444444442).

It can be divided in two parts, 220022 and 24420, that added together give a palindrome (244442).

The spelling of 22002224420 in words is "twenty-two billion, two million, two hundred twenty-four thousand, four hundred twenty".