212001112321 has 8 divisors (see below), whose sum is σ = 212597985600. Its totient is φ = 211404833040.

The previous prime is 212001112303. The next prime is 212001112333. The reversal of 212001112321 is 123211100212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212001112321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212001112295 and 212001112304.

It is not an unprimeable number, because it can be changed into a prime (212001112021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571210 + ... + 866188.

It is an arithmetic number, because the mean of its divisors is an integer number (26574748200).

Almost surely, 2^212001112321 is an apocalyptic number.

It is an amenable number.

212001112321 is a deficient number, since it is larger than the sum of its proper divisors (596873279).

212001112321 is a wasteful number, since it uses less digits than its factorization.

212001112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296999.

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

Adding to 212001112321 its reverse (123211100212), we get a palindrome (335212212533).

The spelling of 212001112321 in words is "two hundred twelve billion, one million, one hundred twelve thousand, three hundred twenty-one".