12001223012280 has 128 divisors (see below), whose sum is σ = 38122528953600. Its totient is φ = 3011992881152.

The previous prime is 12001223012237. The next prime is 12001223012281. The reversal of 12001223012280 is 8221032210021.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12001223012280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001223012281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144755719 + ... + 144838601.

It is an arithmetic number, because the mean of its divisors is an integer number (297832257450).

Almost surely, 2^{12001223012280} is an apocalyptic number.

12001223012280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001223012280 is an abundant number, since it is smaller than the sum of its proper divisors (26121305941320).

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

12001223012280 is a wasteful number, since it uses less digits than its factorization.

12001223012280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153893 (or 153889 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The spelling of 12001223012280 in words is "twelve trillion, one billion, two hundred twenty-three million, twelve thousand, two hundred eighty".