312212202001 has 4 divisors (see below), whose sum is σ = 356813945152. Its totient is φ = 267610458852.

The previous prime is 312212201993. The next prime is 312212202019. The reversal of 312212202001 is 100202212213.

It is a happy number.

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 not a de Polignac number, because 312212202001 - 2³ = 312212201993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312212202301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22300871565 + ... + 22300871578.

It is an arithmetic number, because the mean of its divisors is an integer number (89203486288).

Almost surely, 2^312212202001 is an apocalyptic number.

It is an amenable number.

312212202001 is a deficient number, since it is larger than the sum of its proper divisors (44601743151).

312212202001 is an equidigital number, since it uses as much as digits as its factorization.

312212202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44601743150.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 312212202001 its reverse (100202212213), we get a palindrome (412414414214).

The spelling of 312212202001 in words is "three hundred twelve billion, two hundred twelve million, two hundred two thousand, one".