212101326 has 12 divisors (see below), whose sum is σ = 459552912. Its totient is φ = 70700436.

The previous prime is 212101319. The next prime is 212101361. The reversal of 212101326 is 623101212.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11783407 = 212101326 / (2 + 1 + 2 + 1 + 0 + 1 + 3 + 2 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 212101299 and 212101308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5891686 + ... + 5891721.

It is an arithmetic number, because the mean of its divisors is an integer number (38296076).

Almost surely, 2^212101326 is an apocalyptic number.

212101326 is an abundant number, since it is smaller than the sum of its proper divisors (247451586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212101326 is a wasteful number, since it uses less digits than its factorization.

212101326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11783415 (or 11783412 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 212101326 is about 14563.6989120209. The cubic root of 212101326 is about 596.3681774642.

Adding to 212101326 its reverse (623101212), we get a palindrome (835202538).

The spelling of 212101326 in words is "two hundred twelve million, one hundred one thousand, three hundred twenty-six".