22420004420 has 24 divisors (see below), whose sum is σ = 51362192448. Its totient is φ = 8152728800.

The previous prime is 22420004363. The next prime is 22420004449. The reversal of 22420004420 is 2440002422.

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 = 22420004392 and 22420004401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50954336 + ... + 50954775.

It is an arithmetic number, because the mean of its divisors is an integer number (2140091352).

Almost surely, 2^22420004420 is an apocalyptic number.

22420004420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22420004420 is an abundant number, since it is smaller than the sum of its proper divisors (28942188028).

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

22420004420 is a wasteful number, since it uses less digits than its factorization.

22420004420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101909131 (or 101909129 counting only the distinct ones).

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

Adding to 22420004420 its reverse (2440002422), we get a palindrome (24860006842).

The spelling of 22420004420 in words is "twenty-two billion, four hundred twenty million, four thousand, four hundred twenty".