212001100321 has 8 divisors (see below), whose sum is σ = 218055363680. Its totient is φ = 205997928192.

The previous prime is 212001100277. The next prime is 212001100391. The reversal of 212001100321 is 123001100212.

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

It is a cyclic number.

It is not a de Polignac number, because 212001100321 - 2¹³ = 212001092129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212001100391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12764391 + ... + 12780988.

It is an arithmetic number, because the mean of its divisors is an integer number (27256920460).

Almost surely, 2^212001100321 is an apocalyptic number.

It is an amenable number.

212001100321 is a deficient number, since it is larger than the sum of its proper divisors (6054263359).

212001100321 is a wasteful number, since it uses less digits than its factorization.

212001100321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25545615.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 212001100321 its reverse (123001100212), we get a palindrome (335002200533).

The spelling of 212001100321 in words is "two hundred twelve billion, one million, one hundred thousand, three hundred twenty-one".