22520142056 has 32 divisors (see below), whose sum is σ = 43853805000. Its totient is φ = 10832633856.

The previous prime is 22520141999. The next prime is 22520142059. The reversal of 22520142056 is 65024102522.

It can be written as a sum of positive squares in 4 ways, for example, as 21700236100 + 819905956 = 147310^2 + 28634^2 .

It is not an unprimeable number, because it can be changed into a prime (22520142059) 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 7 ways as a sum of consecutive naturals, for example, 401081 + ... + 453768.

Almost surely, 2^22520142056 is an apocalyptic number.

It is an amenable number.

22520142056 is a deficient number, since it is larger than the sum of its proper divisors (21333662944).

22520142056 is a wasteful number, since it uses less digits than its factorization.

22520142056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854981 (or 854977 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 22520142056 its reverse (65024102522), we get a palindrome (87544244578).

The spelling of 22520142056 in words is "twenty-two billion, five hundred twenty million, one hundred forty-two thousand, fifty-six".