312201122022321 has 16 divisors (see below), whose sum is σ = 480099584764800. Its totient is φ = 176763938024448.

The previous prime is 312201122022281. The next prime is 312201122022323. The reversal of 312201122022321 is 123220221102213.

It is not a de Polignac number, because 312201122022321 - 2⁷ = 312201122022193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312201122022291 and 312201122022300.

It is not an unprimeable number, because it can be changed into a prime (312201122022323) 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, 68195961456 + ... + 68195966033.

It is an arithmetic number, because the mean of its divisors is an integer number (30006224047800).

Almost surely, 2^{312201122022321} is an apocalyptic number.

It is an amenable number.

312201122022321 is a deficient number, since it is larger than the sum of its proper divisors (167898462742479).

312201122022321 is a wasteful number, since it uses less digits than its factorization.

312201122022321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136391927608.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 312201122022321 its reverse (123220221102213), we get a palindrome (435421343124534).

The spelling of 312201122022321 in words is "three hundred twelve trillion, two hundred one billion, one hundred twenty-two million, twenty-two thousand, three hundred twenty-one".