12224543550 has 48 divisors (see below), whose sum is σ = 30340831872. Its totient is φ = 3257301600.

The previous prime is 12224543543. The next prime is 12224543587. The reversal of 12224543550 is 5534542221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162087 + ... + 225213.

It is an arithmetic number, because the mean of its divisors is an integer number (632100664).

Almost surely, 2^12224543550 is an apocalyptic number.

12224543550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12224543550 is an abundant number, since it is smaller than the sum of its proper divisors (18116288322).

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

12224543550 is a wasteful number, since it uses less digits than its factorization.

12224543550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64433 (or 64428 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 12224543550 in words is "twelve billion, two hundred twenty-four million, five hundred forty-three thousand, five hundred fifty".