12000042120266 has 16 divisors (see below), whose sum is σ = 18101066941440. Its totient is φ = 5966354787360.

The previous prime is 12000042120263. The next prime is 12000042120289. The reversal of 12000042120266 is 66202124000021.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12000042120263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14981111 + ... + 15761781.

It is an arithmetic number, because the mean of its divisors is an integer number (1131316683840).

Almost surely, 2^{12000042120266} is an apocalyptic number.

12000042120266 is a deficient number, since it is larger than the sum of its proper divisors (6101024821174).

12000042120266 is a wasteful number, since it uses less digits than its factorization.

12000042120266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823789.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 12000042120266 its reverse (66202124000021), we get a palindrome (78202166120287).

The spelling of 12000042120266 in words is "twelve trillion, forty-two million, one hundred twenty thousand, two hundred sixty-six".