212100423321 has 8 divisors (see below), whose sum is σ = 286207800480. Its totient is φ = 139696664192.

The previous prime is 212100423319. The next prime is 212100423349. The reversal of 212100423321 is 123324001212.

212100423321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212100423321 - 2¹ = 212100423319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212100421321) 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, 425904216 + ... + 425904713.

It is an arithmetic number, because the mean of its divisors is an integer number (35775975060).

Almost surely, 2^212100423321 is an apocalyptic number.

It is an amenable number.

212100423321 is a deficient number, since it is larger than the sum of its proper divisors (74107377159).

212100423321 is an equidigital number, since it uses as much as digits as its factorization.

212100423321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851809015.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212100423321 its reverse (123324001212), we get a palindrome (335424424533).

The spelling of 212100423321 in words is "two hundred twelve billion, one hundred million, four hundred twenty-three thousand, three hundred twenty-one".