12102101212211 has 4 divisors (see below), whose sum is σ = 12307221571800. Its totient is φ = 11896980852624.

The previous prime is 12102101212207. The next prime is 12102101212247. The reversal of 12102101212211 is 11221210120121.

12102101212211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12102101212211 - 2² = 12102101212207 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 12102101212211.

It is not an unprimeable number, because it can be changed into a prime (12102101214211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102560179706 + ... + 102560179823.

It is an arithmetic number, because the mean of its divisors is an integer number (3076805392950).

Almost surely, 2^{12102101212211} is an apocalyptic number.

12102101212211 is a deficient number, since it is larger than the sum of its proper divisors (205120359589).

12102101212211 is an equidigital number, since it uses as much as digits as its factorization.

12102101212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205120359588.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12102101212211 its reverse (11221210120121), we get a palindrome (23323311332332).

The spelling of 12102101212211 in words is "twelve trillion, one hundred two billion, one hundred one million, two hundred twelve thousand, two hundred eleven".