12269533550 has 12 divisors (see below), whose sum is σ = 22821332496. Its totient is φ = 4907813400.

The previous prime is 12269533511. The next prime is 12269533579. The reversal of 12269533550 is 5533596221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12269533498 and 12269533507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122695286 + ... + 122695385.

It is an arithmetic number, because the mean of its divisors is an integer number (1901777708).

Almost surely, 2^12269533550 is an apocalyptic number.

12269533550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12269533550 is a deficient number, since it is larger than the sum of its proper divisors (10551798946).

12269533550 is a wasteful number, since it uses less digits than its factorization.

12269533550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245390683 (or 245390678 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 41.

The spelling of 12269533550 in words is "twelve billion, two hundred sixty-nine million, five hundred thirty-three thousand, five hundred fifty".