12020110211 has 4 divisors (see below), whose sum is σ = 12434596800. Its totient is φ = 11605623624.

The previous prime is 12020110187. The next prime is 12020110301. The reversal of 12020110211 is 11201102021.

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 12020110211 - 2¹⁰ = 12020109187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020110192 and 12020110201.

It is not an unprimeable number, because it can be changed into a prime (12020110511) 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, 207243251 + ... + 207243308.

It is an arithmetic number, because the mean of its divisors is an integer number (3108649200).

Almost surely, 2^12020110211 is an apocalyptic number.

12020110211 is a deficient number, since it is larger than the sum of its proper divisors (414486589).

12020110211 is an equidigital number, since it uses as much as digits as its factorization.

12020110211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414486588.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12020110211 its reverse (11201102021), we get a palindrome (23221212232).

The spelling of 12020110211 in words is "twelve billion, twenty million, one hundred ten thousand, two hundred eleven".