12266666242 has 4 divisors (see below), whose sum is σ = 18399999366. Its totient is φ = 6133333120.

The previous prime is 12266666227. The next prime is 12266666263. The reversal of 12266666242 is 24266666221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11041596241 + 1225070001 = 105079^2 + 35001^2 .

It is a super-2 number, since 2×12266666242² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3066666559 + ... + 3066666562.

Almost surely, 2^12266666242 is an apocalyptic number.

12266666242 is a deficient number, since it is larger than the sum of its proper divisors (6133333124).

12266666242 is an equidigital number, since it uses as much as digits as its factorization.

12266666242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6133333123.

The product of its digits is 497664, while the sum is 43.

The spelling of 12266666242 in words is "twelve billion, two hundred sixty-six million, six hundred sixty-six thousand, two hundred forty-two".