12243220554 has 32 divisors (see below), whose sum is σ = 24735891456. Its totient is φ = 4039562480.

The previous prime is 12243220541. The next prime is 12243220571. The reversal of 12243220554 is 45502234221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 831799 + ... + 846389.

It is an arithmetic number, because the mean of its divisors is an integer number (772996608).

Almost surely, 2^12243220554 is an apocalyptic number.

12243220554 is an abundant number, since it is smaller than the sum of its proper divisors (12492670902).

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

12243220554 is a wasteful number, since it uses less digits than its factorization.

12243220554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16010.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 12243220554 its reverse (45502234221), we get a palindrome (57745454775).

The spelling of 12243220554 in words is "twelve billion, two hundred forty-three million, two hundred twenty thousand, five hundred fifty-four".