22424200000 has 84 divisors (see below), whose sum is σ = 55619463564. Its totient is φ = 8969600000.

The previous prime is 22424199997. The next prime is 22424200003. The reversal of 22424200000 is 242422.

It is an interprime number because it is at equal distance from previous prime (22424199997) and next prime (22424200003).

It can be written as a sum of positive squares in 6 ways, for example, as 21977469504 + 446730496 = 148248^2 + 21136^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22424200003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143940 + ... + 256060.

It is an arithmetic number, because the mean of its divisors is an integer number (662136471).

Almost surely, 2^22424200000 is an apocalyptic number.

22424200000 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 22424200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27809731782).

22424200000 is an abundant number, since it is smaller than the sum of its proper divisors (33195263564).

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

22424200000 is an frugal number, since it uses more digits than its factorization.

22424200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112158 (or 112128 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 22424200000 its reverse (242422), we get a palindrome (22424442422).

The spelling of 22424200000 in words is "twenty-two billion, four hundred twenty-four million, two hundred thousand".