12145200322 has 4 divisors (see below), whose sum is σ = 18217800486. Its totient is φ = 6072600160.

The previous prime is 12145200313. The next prime is 12145200329. The reversal of 12145200322 is 22300254121.

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., 11174815521 + 970384801 = 105711^2 + 31151^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12145200293 and 12145200302.

It is not an unprimeable number, because it can be changed into a prime (12145200329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3036300079 + ... + 3036300082.

Almost surely, 2^12145200322 is an apocalyptic number.

12145200322 is a deficient number, since it is larger than the sum of its proper divisors (6072600164).

12145200322 is an equidigital number, since it uses as much as digits as its factorization.

12145200322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6072600163.

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

Adding to 12145200322 its reverse (22300254121), we get a palindrome (34445454443).

The spelling of 12145200322 in words is "twelve billion, one hundred forty-five million, two hundred thousand, three hundred twenty-two".