312002211999 has 4 divisors (see below), whose sum is σ = 416002949336. Its totient is φ = 208001474664.

The previous prime is 312002211991. The next prime is 312002212001. The reversal of 312002211999 is 999112200213.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 312002211999 - 2³ = 312002211991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312002211991) 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, 52000368664 + ... + 52000368669.

It is an arithmetic number, because the mean of its divisors is an integer number (104000737334).

Almost surely, 2^312002211999 is an apocalyptic number.

312002211999 is a deficient number, since it is larger than the sum of its proper divisors (104000737337).

312002211999 is a wasteful number, since it uses less digits than its factorization.

312002211999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104000737336.

The product of its (nonzero) digits is 17496, while the sum is 39.

The spelling of 312002211999 in words is "three hundred twelve billion, two million, two hundred eleven thousand, nine hundred ninety-nine".