312002211121 has 8 divisors (see below), whose sum is σ = 326742865344. Its totient is φ = 297359502000.

The previous prime is 312002211119. The next prime is 312002211137. The reversal of 312002211121 is 121112200213.

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

It is not a de Polignac number, because 312002211121 - 2¹ = 312002211119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312002211095 and 312002211104.

It is not an unprimeable number, because it can be changed into a prime (312002211151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24479755 + ... + 24492496.

It is an arithmetic number, because the mean of its divisors is an integer number (40842858168).

Almost surely, 2^312002211121 is an apocalyptic number.

It is an amenable number.

312002211121 is a deficient number, since it is larger than the sum of its proper divisors (14740654223).

312002211121 is a wasteful number, since it uses less digits than its factorization.

312002211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48972551.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 312002211121 its reverse (121112200213), we get a palindrome (433114411334).

The spelling of 312002211121 in words is "three hundred twelve billion, two million, two hundred eleven thousand, one hundred twenty-one".