12221042466 has 8 divisors (see below), whose sum is σ = 24442084944. Its totient is φ = 4073680820.

The previous prime is 12221042447. The next prime is 12221042567. The reversal of 12221042466 is 66424012221.

12221042466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

12221042466 is an admirable number.

It is a super-2 number, since 2×12221042466² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018420200 + ... + 1018420211.

It is an arithmetic number, because the mean of its divisors is an integer number (3055260618).

Almost surely, 2^12221042466 is an apocalyptic number.

12221042466 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12221042466 is a wasteful number, since it uses less digits than its factorization.

12221042466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036840416.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 12221042466 its reverse (66424012221), we get a palindrome (78645054687).

The spelling of 12221042466 in words is "twelve billion, two hundred twenty-one million, forty-two thousand, four hundred sixty-six".