12342221530145 has 64 divisors (see below), whose sum is σ = 16945159694400. Its totient is φ = 8549206622208.

The previous prime is 12342221530141. The next prime is 12342221530217. The reversal of 12342221530145 is 54103512224321.

12342221530145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 32 ways, for example, as 2143249152256 + 10198972377889 = 1463984^2 + 3193583^2 .

It is a cyclic number.

It is not a de Polignac number, because 12342221530145 - 2² = 12342221530141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12342221530141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 885819599 + ... + 885833531.

It is an arithmetic number, because the mean of its divisors is an integer number (264768120225).

Almost surely, 2^{12342221530145} is an apocalyptic number.

It is an amenable number.

12342221530145 is a deficient number, since it is larger than the sum of its proper divisors (4602938164255).

12342221530145 is a wasteful number, since it uses less digits than its factorization.

12342221530145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16614.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 12342221530145 its reverse (54103512224321), we get a palindrome (66445733754466).

The spelling of 12342221530145 in words is "twelve trillion, three hundred forty-two billion, two hundred twenty-one million, five hundred thirty thousand, one hundred forty-five".