22105345552 has 20 divisors (see below), whose sum is σ = 42894715500. Its totient is φ = 11035741568.

The previous prime is 22105345543. The next prime is 22105345573. The reversal of 22105345552 is 25554350122.

It can be written as a sum of positive squares in 2 ways, for example, as 5473632256 + 16631713296 = 73984^2 + 128964^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047427 + ... + 1068322.

It is an arithmetic number, because the mean of its divisors is an integer number (2144735775).

Almost surely, 2^22105345552 is an apocalyptic number.

It is an amenable number.

22105345552 is a deficient number, since it is larger than the sum of its proper divisors (20789369948).

22105345552 is a wasteful number, since it uses less digits than its factorization.

22105345552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116410 (or 2116404 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

Adding to 22105345552 its reverse (25554350122), we get a palindrome (47659695674).

The spelling of 22105345552 in words is "twenty-two billion, one hundred five million, three hundred forty-five thousand, five hundred fifty-two".