312220311213001 has 4 divisors (see below), whose sum is σ = 328652959171600. Its totient is φ = 295787663254404.

The previous prime is 312220311212989. The next prime is 312220311213007. The reversal of 312220311213001 is 100312113022213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312220311213001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312220311213007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8216323979271 + ... + 8216323979308.

It is an arithmetic number, because the mean of its divisors is an integer number (82163239792900).

Almost surely, 2^{312220311213001} is an apocalyptic number.

It is an amenable number.

312220311213001 is a deficient number, since it is larger than the sum of its proper divisors (16432647958599).

312220311213001 is a wasteful number, since it uses less digits than its factorization.

312220311213001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16432647958598.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 312220311213001 its reverse (100312113022213), we get a palindrome (412532424235214).

The spelling of 312220311213001 in words is "three hundred twelve trillion, two hundred twenty billion, three hundred eleven million, two hundred thirteen thousand, one".