22143444404 has 24 divisors (see below), whose sum is σ = 39244248960. Its totient is φ = 10931348736.

The previous prime is 22143444329. The next prime is 22143444409. The reversal of 22143444404 is 40444434122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22143444409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94469 + ... + 230675.

It is an arithmetic number, because the mean of its divisors is an integer number (1635177040).

Almost surely, 2^22143444404 is an apocalyptic number.

It is an amenable number.

22143444404 is a deficient number, since it is larger than the sum of its proper divisors (17100804556).

22143444404 is a wasteful number, since it uses less digits than its factorization.

22143444404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136727 (or 136725 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 22143444404 its reverse (40444434122), we get a palindrome (62587878526).

The spelling of 22143444404 in words is "twenty-two billion, one hundred forty-three million, four hundred forty-four thousand, four hundred four".