20102212201211 has 4 divisors (see below), whose sum is σ = 22973956801392. Its totient is φ = 17230467601032.

The previous prime is 20102212201207. The next prime is 20102212201219. The reversal of 20102212201211 is 11210221220102.

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

It is not a de Polignac number, because 20102212201211 - 2² = 20102212201207 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 20102212201211.

It is not an unprimeable number, because it can be changed into a prime (20102212201219) 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, 1435872300080 + ... + 1435872300093.

It is an arithmetic number, because the mean of its divisors is an integer number (5743489200348).

Almost surely, 2^{20102212201211} is an apocalyptic number.

20102212201211 is a deficient number, since it is larger than the sum of its proper divisors (2871744600181).

20102212201211 is an equidigital number, since it uses as much as digits as its factorization.

20102212201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871744600180.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20102212201211 its reverse (11210221220102), we get a palindrome (31312433421313).

The spelling of 20102212201211 in words is "twenty trillion, one hundred two billion, two hundred twelve million, two hundred one thousand, two hundred eleven".