22145245532 has 12 divisors (see below), whose sum is σ = 39389494536. Its totient is φ = 10891104240.

The previous prime is 22145245523. The next prime is 22145245567. The reversal of 22145245532 is 23554254122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22145245492 and 22145245501.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 45379358 + ... + 45379845.

It is an arithmetic number, because the mean of its divisors is an integer number (3282457878).

Almost surely, 2^22145245532 is an apocalyptic number.

It is an amenable number.

22145245532 is a deficient number, since it is larger than the sum of its proper divisors (17244249004).

22145245532 is a wasteful number, since it uses less digits than its factorization.

22145245532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90759268 (or 90759266 counting only the distinct ones).

The product of its digits is 96000, while the sum is 35.

Adding to 22145245532 its reverse (23554254122), we get a palindrome (45699499654).

The spelling of 22145245532 in words is "twenty-two billion, one hundred forty-five million, two hundred forty-five thousand, five hundred thirty-two".