22511434442 has 32 divisors (see below), whose sum is σ = 41222742912. Its totient is φ = 8999875584.

The previous prime is 22511434399. The next prime is 22511434471. The reversal of 22511434442 is 24443411522.

It is a junction number, because it is equal to n+sod(n) for n = 22511434399 and 22511434408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391628 + ... + 445415.

It is an arithmetic number, because the mean of its divisors is an integer number (1288210716).

Almost surely, 2^22511434442 is an apocalyptic number.

22511434442 is a deficient number, since it is larger than the sum of its proper divisors (18711308470).

22511434442 is a wasteful number, since it uses less digits than its factorization.

22511434442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837182.

The product of its digits is 30720, while the sum is 32.

Adding to 22511434442 its reverse (24443411522), we get a palindrome (46954845964).

The spelling of 22511434442 in words is "twenty-two billion, five hundred eleven million, four hundred thirty-four thousand, four hundred forty-two".