22004400412 has 24 divisors (see below), whose sum is σ = 39866727600. Its totient is φ = 10614500736.

The previous prime is 22004400409. The next prime is 22004400461. The reversal of 22004400412 is 21400440022.

It is a self number, because there is not a number n which added to its sum of digits gives 22004400412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75943 + ... + 223105.

It is an arithmetic number, because the mean of its divisors is an integer number (1661113650).

Almost surely, 2^22004400412 is an apocalyptic number.

It is an amenable number.

22004400412 is a deficient number, since it is larger than the sum of its proper divisors (17862327188).

22004400412 is a wasteful number, since it uses less digits than its factorization.

22004400412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148485 (or 148483 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22004400412 its reverse (21400440022), we get a palindrome (43404840434).

The spelling of 22004400412 in words is "twenty-two billion, four million, four hundred thousand, four hundred twelve".