22055010420 has 96 divisors (see below), whose sum is σ = 62731468800. Its totient is φ = 5788404864.

The previous prime is 22055010391. The next prime is 22055010421. The reversal of 22055010420 is 2401055022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22055010421) 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 31 ways as a sum of consecutive naturals, for example, 7069621 + ... + 7072739.

It is an arithmetic number, because the mean of its divisors is an integer number (653452800).

Almost surely, 2^22055010420 is an apocalyptic number.

22055010420 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 22055010420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31365734400).

22055010420 is an abundant number, since it is smaller than the sum of its proper divisors (40676458380).

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

22055010420 is a wasteful number, since it uses less digits than its factorization.

22055010420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4957 (or 4955 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 22055010420 its reverse (2401055022), we get a palindrome (24456065442).

The spelling of 22055010420 in words is "twenty-two billion, fifty-five million, ten thousand, four hundred twenty".