12212500521322 has 4 divisors (see below), whose sum is σ = 18318750781986. Its totient is φ = 6106250260660.

The previous prime is 12212500521283. The next prime is 12212500521323. The reversal of 12212500521322 is 22312500521221.

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., 11494195115481 + 718305405841 = 3390309^2 + 847529^2 .

It is not an unprimeable number, because it can be changed into a prime (12212500521323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053125130329 + ... + 3053125130332.

Almost surely, 2^{12212500521322} is an apocalyptic number.

12212500521322 is a deficient number, since it is larger than the sum of its proper divisors (6106250260664).

12212500521322 is an equidigital number, since it uses as much as digits as its factorization.

12212500521322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106250260663.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 12212500521322 in words is "twelve trillion, two hundred twelve billion, five hundred million, five hundred twenty-one thousand, three hundred twenty-two".