22120254024 has 64 divisors (see below), whose sum is σ = 63503136000. Its totient is φ = 6350310720.

The previous prime is 22120254007. The next prime is 22120254029. The reversal of 22120254024 is 42045202122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 22120253985 and 22120254003.

It is not an unprimeable number, because it can be changed into a prime (22120254029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2199954 + ... + 2209985.

It is an arithmetic number, because the mean of its divisors is an integer number (992236500).

Almost surely, 2^22120254024 is an apocalyptic number.

22120254024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22120254024 is an abundant number, since it is smaller than the sum of its proper divisors (41382881976).

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

22120254024 is a wasteful number, since it uses less digits than its factorization.

22120254024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409978 (or 4409974 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 22120254024 its reverse (42045202122), we get a palindrome (64165456146).

The spelling of 22120254024 in words is "twenty-two billion, one hundred twenty million, two hundred fifty-four thousand, twenty-four".