22054043220 has 144 divisors (see below), whose sum is σ = 71868492864. Its totient is φ = 5031910400.

The previous prime is 22054043197. The next prime is 22054043269. The reversal of 22054043220 is 2234045022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34075 + ... + 212765.

It is an arithmetic number, because the mean of its divisors is an integer number (499086756).

Almost surely, 2^22054043220 is an apocalyptic number.

22054043220 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 22054043220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35934246432).

22054043220 is an abundant number, since it is smaller than the sum of its proper divisors (49814449644).

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

22054043220 is a wasteful number, since it uses less digits than its factorization.

22054043220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178742 (or 178729 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 22054043220 its reverse (2234045022), we get a palindrome (24288088242).

The spelling of 22054043220 in words is "twenty-two billion, fifty-four million, forty-three thousand, two hundred twenty".