12225420322242 has 32 divisors (see below), whose sum is σ = 25111932983232. Its totient is φ = 3964960321344.

The previous prime is 12225420322217. The next prime is 12225420322273. The reversal of 12225420322242 is 24222302452221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27353613 + ... + 27796959.

It is an arithmetic number, because the mean of its divisors is an integer number (784747905726).

Almost surely, 2^{12225420322242} is an apocalyptic number.

12225420322242 is an abundant number, since it is smaller than the sum of its proper divisors (12886512660990).

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

12225420322242 is a wasteful number, since it uses less digits than its factorization.

12225420322242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567602.

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 12225420322242 its reverse (24222302452221), we get a palindrome (36447722774463).

The spelling of 12225420322242 in words is "twelve trillion, two hundred twenty-five billion, four hundred twenty million, three hundred twenty-two thousand, two hundred forty-two".