12220221122211 has 16 divisors (see below), whose sum is σ = 16561028859264. Its totient is φ = 8013469795584.

The previous prime is 12220221122203. The next prime is 12220221122261. The reversal of 12220221122211 is 11222112202221.

It is not a de Polignac number, because 12220221122211 - 2³ = 12220221122203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12220221122261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44370126 + ... + 44644691.

It is an arithmetic number, because the mean of its divisors is an integer number (1035064303704).

Almost surely, 2^{12220221122211} is an apocalyptic number.

12220221122211 is a deficient number, since it is larger than the sum of its proper divisors (4340807737053).

12220221122211 is an equidigital number, since it uses as much as digits as its factorization.

12220221122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89015570.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12220221122211 its reverse (11222112202221), we get a palindrome (23442333324432).

The spelling of 12220221122211 in words is "twelve trillion, two hundred twenty billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred eleven".