12020041211 has 4 divisors (see below), whose sum is σ = 12089521392. Its totient is φ = 11950561032.

The previous prime is 12020041207. The next prime is 12020041213. The reversal of 12020041211 is 11214002021.

It is a happy number.

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 12020041211 - 2² = 12020041207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020041213) 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, 34739831 + ... + 34740176.

It is an arithmetic number, because the mean of its divisors is an integer number (3022380348).

Almost surely, 2^12020041211 is an apocalyptic number.

12020041211 is a deficient number, since it is larger than the sum of its proper divisors (69480181).

12020041211 is an equidigital number, since it uses as much as digits as its factorization.

12020041211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69480180.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12020041211 its reverse (11214002021), we get a palindrome (23234043232).

The spelling of 12020041211 in words is "twelve billion, twenty million, forty-one thousand, two hundred eleven".