1312123222201 has 8 divisors (see below), whose sum is σ = 1515607572384. Its totient is φ = 1122672275520.

The previous prime is 1312123222159. The next prime is 1312123222229. The reversal of 1312123222201 is 1022223212131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312123222201 - 2²⁹ = 1311586351289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312123222231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3508350675 + ... + 3508351048.

It is an arithmetic number, because the mean of its divisors is an integer number (189450946548).

Almost surely, 2^{1312123222201} is an apocalyptic number.

1312123222201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1312123222201 is a deficient number, since it is larger than the sum of its proper divisors (203484350183).

1312123222201 is a wasteful number, since it uses less digits than its factorization.

1312123222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7016701751.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1312123222201 its reverse (1022223212131), we get a palindrome (2334346434332).

The spelling of 1312123222201 in words is "one trillion, three hundred twelve billion, one hundred twenty-three million, two hundred twenty-two thousand, two hundred one".