22005022540 has 24 divisors (see below), whose sum is σ = 46217166912. Its totient is φ = 8800748160.

The previous prime is 22005022511. The next prime is 22005022541. The reversal of 22005022540 is 4522050022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22005022541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71277 + ... + 221563.

It is an arithmetic number, because the mean of its divisors is an integer number (1925715288).

Almost surely, 2^22005022540 is an apocalyptic number.

22005022540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22005022540 is an abundant number, since it is smaller than the sum of its proper divisors (24212144372).

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

22005022540 is a wasteful number, since it uses less digits than its factorization.

22005022540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157617 (or 157615 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

Adding to 22005022540 its reverse (4522050022), we get a palindrome (26527072562).

The spelling of 22005022540 in words is "twenty-two billion, five million, twenty-two thousand, five hundred forty".