12225130042 has 4 divisors (see below), whose sum is σ = 18337695066. Its totient is φ = 6112565020.

The previous prime is 12225130031. The next prime is 12225130063. The reversal of 12225130042 is 24003152221.

It is a happy number.

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., 9198919921 + 3026210121 = 95911^2 + 55011^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12225129995 and 12225130022.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3056282509 + ... + 3056282512.

Almost surely, 2^12225130042 is an apocalyptic number.

12225130042 is a deficient number, since it is larger than the sum of its proper divisors (6112565024).

12225130042 is an equidigital number, since it uses as much as digits as its factorization.

12225130042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6112565023.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 12225130042 its reverse (24003152221), we get a palindrome (36228282263).

The spelling of 12225130042 in words is "twelve billion, two hundred twenty-five million, one hundred thirty thousand, forty-two".