312112200021 has 8 divisors (see below), whose sum is σ = 416471951904. Its totient is φ = 207913624080.

The previous prime is 312112199983. The next prime is 312112200109. The reversal of 312112200021 is 120002211213.

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

It is not a de Polignac number, because 312112200021 - 2¹⁰ = 312112198997 is a prime.

It is a super-3 number, since 3×312112200021³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312112200821) 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, 40289466 + ... + 40297211.

It is an arithmetic number, because the mean of its divisors is an integer number (52058993988).

Almost surely, 2^312112200021 is an apocalyptic number.

It is an amenable number.

312112200021 is a deficient number, since it is larger than the sum of its proper divisors (104359751883).

312112200021 is a wasteful number, since it uses less digits than its factorization.

312112200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80587971.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 312112200021 its reverse (120002211213), we get a palindrome (432114411234).

The spelling of 312112200021 in words is "three hundred twelve billion, one hundred twelve million, two hundred thousand, twenty-one".