1312201221193 has 16 divisors (see below), whose sum is σ = 1423427468544. Its totient is φ = 1204922763520.

The previous prime is 1312201221157. The next prime is 1312201221197. The reversal of 1312201221193 is 3911221022131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312201221193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312201221197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2337103 + ... + 2843668.

It is an arithmetic number, because the mean of its divisors is an integer number (88964216784).

Almost surely, 2^{1312201221193} is an apocalyptic number.

It is an amenable number.

1312201221193 is a deficient number, since it is larger than the sum of its proper divisors (111226247351).

1312201221193 is a wasteful number, since it uses less digits than its factorization.

1312201221193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5181152.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 1312201221193 in words is "one trillion, three hundred twelve billion, two hundred one million, two hundred twenty-one thousand, one hundred ninety-three".