212111330201 has 4 divisors (see below), whose sum is σ = 212183504400. Its totient is φ = 212039156004.

The previous prime is 212111330191. The next prime is 212111330251. The reversal of 212111330201 is 102033111212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212111330201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 212111330201.

It is not an unprimeable number, because it can be changed into a prime (212111330251) 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 3 ways as a sum of consecutive naturals, for example, 36082691 + ... + 36088568.

It is an arithmetic number, because the mean of its divisors is an integer number (53045876100).

Almost surely, 2^212111330201 is an apocalyptic number.

It is an amenable number.

212111330201 is a deficient number, since it is larger than the sum of its proper divisors (72174199).

212111330201 is an equidigital number, since it uses as much as digits as its factorization.

212111330201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72174198.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212111330201 its reverse (102033111212), we get a palindrome (314144441413).

The spelling of 212111330201 in words is "two hundred twelve billion, one hundred eleven million, three hundred thirty thousand, two hundred one".