22005044452 has 6 divisors (see below), whose sum is σ = 38508827798. Its totient is φ = 11002522224.

The previous prime is 22005044429. The next prime is 22005044461. The reversal of 22005044452 is 25444050022.

It can be written as a sum of positive squares in only one way, i.e., 19117486756 + 2887557696 = 138266^2 + 53736^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22005044452.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2750630553 + ... + 2750630560.

Almost surely, 2^22005044452 is an apocalyptic number.

It is an amenable number.

22005044452 is a deficient number, since it is larger than the sum of its proper divisors (16503783346).

22005044452 is a wasteful number, since it uses less digits than its factorization.

22005044452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501261117 (or 5501261115 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

Adding to 22005044452 its reverse (25444050022), we get a palindrome (47449094474).

The spelling of 22005044452 in words is "twenty-two billion, five million, forty-four thousand, four hundred fifty-two".