12222355548 has 48 divisors (see below), whose sum is σ = 30732800000. Its totient is φ = 3758249664.

The previous prime is 12222355543. The next prime is 12222355567. The reversal of 12222355548 is 84555322221.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222355543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219453 + ... + 269451.

Almost surely, 2^12222355548 is an apocalyptic number.

It is an amenable number.

12222355548 is an abundant number, since it is smaller than the sum of its proper divisors (18510444452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12222355548 is a wasteful number, since it uses less digits than its factorization.

12222355548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51586 (or 51584 counting only the distinct ones).

The product of its digits is 192000, while the sum is 39.

Adding to 12222355548 its reverse (84555322221), we get a palindrome (96777677769).

It can be divided in two parts, 122223 and 55548, that added together give a palindrome (177771).

The spelling of 12222355548 in words is "twelve billion, two hundred twenty-two million, three hundred fifty-five thousand, five hundred forty-eight".