12220002211 has 4 divisors (see below), whose sum is σ = 12238160392. Its totient is φ = 12201844032.

The previous prime is 12220002191. The next prime is 12220002233. The reversal of 12220002211 is 11220002221.

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 12220002211 - 2³¹ = 10072518563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12220002191 and 12220002200.

It is not an unprimeable number, because it can be changed into a prime (12220002811) 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, 9078081 + ... + 9079426.

It is an arithmetic number, because the mean of its divisors is an integer number (3059540098).

Almost surely, 2^12220002211 is an apocalyptic number.

12220002211 is a deficient number, since it is larger than the sum of its proper divisors (18158181).

12220002211 is an equidigital number, since it uses as much as digits as its factorization.

12220002211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18158180.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12220002211 its reverse (11220002221), we get a palindrome (23440004432).

The spelling of 12220002211 in words is "twelve billion, two hundred twenty million, two thousand, two hundred eleven".