12001155223300 has 72 divisors (see below), whose sum is σ = 26650641124800. Its totient is φ = 4688384507520.

The previous prime is 12001155223271. The next prime is 12001155223307. The reversal of 12001155223300 is 332255110021.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12001155223307) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 47858646 + ... + 48108754.

It is an arithmetic number, because the mean of its divisors is an integer number (370147793400).

Almost surely, 2^{12001155223300} is an apocalyptic number.

12001155223300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001155223300 is an abundant number, since it is smaller than the sum of its proper divisors (14649485901500).

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

12001155223300 is a wasteful number, since it uses less digits than its factorization.

12001155223300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261325 (or 261318 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 12001155223300 in words is "twelve trillion, one billion, one hundred fifty-five million, two hundred twenty-three thousand, three hundred".