12406221230642 has 4 divisors (see below), whose sum is σ = 18609331845966. Its totient is φ = 6203110615320.

The previous prime is 12406221230617. The next prime is 12406221230653. The reversal of 12406221230642 is 24603212260421.

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., 9584590618201 + 2821630612441 = 3095899^2 + 1679771^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3101555307659 + ... + 3101555307662.

Almost surely, 2^{12406221230642} is an apocalyptic number.

12406221230642 is a deficient number, since it is larger than the sum of its proper divisors (6203110615324).

12406221230642 is an equidigital number, since it uses as much as digits as its factorization.

12406221230642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6203110615323.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 12406221230642 in words is "twelve trillion, four hundred six billion, two hundred twenty-one million, two hundred thirty thousand, six hundred forty-two".