12260221144666 has 16 divisors (see below), whose sum is σ = 21242308294080. Its totient is φ = 5245014393280.

The previous prime is 12260221144637. The next prime is 12260221144679. The reversal of 12260221144666 is 66644112206221.

It is a super-2 number, since 2×12260221144666² (a number of 27 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 16390669606 + ... + 16390670353.

It is an arithmetic number, because the mean of its divisors is an integer number (1327644268380).

Almost surely, 2^{12260221144666} is an apocalyptic number.

12260221144666 is a deficient number, since it is larger than the sum of its proper divisors (8982087149414).

12260221144666 is a wasteful number, since it uses less digits than its factorization.

12260221144666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32781339989.

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 12260221144666 in words is "twelve trillion, two hundred sixty billion, two hundred twenty-one million, one hundred forty-four thousand, six hundred sixty-six".