212011001 has 8 divisors (see below), whose sum is σ = 214754400. Its totient is φ = 209285280.

The previous prime is 212010989. The next prime is 212011043. The reversal of 212011001 is 100110212.

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 212011001 - 2¹⁴ = 211994617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212011001.

It is not an unprimeable number, because it can be changed into a prime (212011601) 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, 20621 + ... + 29141.

It is an arithmetic number, because the mean of its divisors is an integer number (26844300).

Almost surely, 2^212011001 is an apocalyptic number.

It is an amenable number.

212011001 is a deficient number, since it is larger than the sum of its proper divisors (2743399).

212011001 is a wasteful number, since it uses less digits than its factorization.

212011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8839.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 212011001 is about 14560.5975495513. The cubic root of 212011001 is about 596.2835094347.

Adding to 212011001 its reverse (100110212), we get a palindrome (312121213).

The spelling of 212011001 in words is "two hundred twelve million, eleven thousand, one".