22123043420 has 12 divisors (see below), whose sum is σ = 46458391224. Its totient is φ = 8849217360.

The previous prime is 22123043413. The next prime is 22123043429. The reversal of 22123043420 is 2434032122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123043429) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 553076066 + ... + 553076105.

It is an arithmetic number, because the mean of its divisors is an integer number (3871532602).

Almost surely, 2^22123043420 is an apocalyptic number.

22123043420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22123043420 is an abundant number, since it is smaller than the sum of its proper divisors (24335347804).

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

22123043420 is a wasteful number, since it uses less digits than its factorization.

22123043420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106152180 (or 1106152178 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 22123043420 its reverse (2434032122), we get a palindrome (24557075542).

The spelling of 22123043420 in words is "twenty-two billion, one hundred twenty-three million, forty-three thousand, four hundred twenty".