22001204525 has 48 divisors (see below), whose sum is σ = 29393832960. Its totient is φ = 16298419200.

The previous prime is 22001204501. The next prime is 22001204531. The reversal of 22001204525 is 52540210022.

It is not a de Polignac number, because 22001204525 - 2³² = 17706237229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22001204525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2535344 + ... + 2544006.

It is an arithmetic number, because the mean of its divisors is an integer number (612371520).

Almost surely, 2^22001204525 is an apocalyptic number.

22001204525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22001204525 is a deficient number, since it is larger than the sum of its proper divisors (7392628435).

22001204525 is a wasteful number, since it uses less digits than its factorization.

22001204525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8846 (or 8841 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 22001204525 its reverse (52540210022), we get a palindrome (74541414547).

The spelling of 22001204525 in words is "twenty-two billion, one million, two hundred four thousand, five hundred twenty-five".