212112021001 has 8 divisors (see below), whose sum is σ = 223375577600. Its totient is φ = 200858441040.

The previous prime is 212112020987. The next prime is 212112021013. The reversal of 212112021001 is 100120211212.

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 212112021001 - 2⁵ = 212112020969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212112021061) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2450490 + ... + 2535571.

It is an arithmetic number, because the mean of its divisors is an integer number (27921947200).

Almost surely, 2^212112021001 is an apocalyptic number.

It is an amenable number.

212112021001 is a deficient number, since it is larger than the sum of its proper divisors (11263556599).

212112021001 is a wasteful number, since it uses less digits than its factorization.

212112021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988319.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212112021001 its reverse (100120211212), we get a palindrome (312232232213).

The spelling of 212112021001 in words is "two hundred twelve billion, one hundred twelve million, twenty-one thousand, one".