22510520434242 has 80 divisors (see below), whose sum is σ = 51959154693600. Its totient is φ = 7279597448640.

The previous prime is 22510520434223. The next prime is 22510520434247. The reversal of 22510520434242 is 24243402501522.

22510520434242 is a `hidden beast` number, since 2 + 2 + 5 + 10 + 520 + 43 + 42 + 42 = 666.

It is a super-2 number, since 2×22510520434242² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22510520434197 and 22510520434206.

It is not an unprimeable number, because it can be changed into a prime (22510520434247) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8277892 + ... + 10655727.

It is an arithmetic number, because the mean of its divisors is an integer number (649489433670).

Almost surely, 2^{22510520434242} is an apocalyptic number.

22510520434242 is an abundant number, since it is smaller than the sum of its proper divisors (29448634259358).

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

22510520434242 is a wasteful number, since it uses less digits than its factorization.

22510520434242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18933853 (or 18933844 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 22510520434242 its reverse (24243402501522), we get a palindrome (46753922935764).

The spelling of 22510520434242 in words is "twenty-two trillion, five hundred ten billion, five hundred twenty million, four hundred thirty-four thousand, two hundred forty-two".