312002002220 has 12 divisors (see below), whose sum is σ = 655204204704. Its totient is φ = 124800800880.

The previous prime is 312002002217. The next prime is 312002002237. The reversal of 312002002220 is 22200200213.

It is a junction number, because it is equal to n+sod(n) for n = 312002002195 and 312002002204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7800050036 + ... + 7800050075.

It is an arithmetic number, because the mean of its divisors is an integer number (54600350392).

Almost surely, 2^312002002220 is an apocalyptic number.

It is an amenable number.

312002002220 is an abundant number, since it is smaller than the sum of its proper divisors (343202202484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312002002220 is a wasteful number, since it uses less digits than its factorization.

312002002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15600100120 (or 15600100118 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 312002002220 its reverse (22200200213), we get a palindrome (334202202433).

The spelling of 312002002220 in words is "three hundred twelve billion, two million, two thousand, two hundred twenty".