12220021120211 has 4 divisors (see below), whose sum is σ = 12220102457712. Its totient is φ = 12219939782712.

The previous prime is 12220021120207. The next prime is 12220021120253. The reversal of 12220021120211 is 11202112002221.

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 12220021120211 - 2² = 12220021120207 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 12220021120211.

It is not an unprimeable number, because it can be changed into a prime (12220021120291) 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, 40442975 + ... + 40744008.

It is an arithmetic number, because the mean of its divisors is an integer number (3055025614428).

Almost surely, 2^{12220021120211} is an apocalyptic number.

12220021120211 is a deficient number, since it is larger than the sum of its proper divisors (81337501).

12220021120211 is an equidigital number, since it uses as much as digits as its factorization.

12220021120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81337500.

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

Adding to 12220021120211 its reverse (11202112002221), we get a palindrome (23422133122432).

The spelling of 12220021120211 in words is "twelve trillion, two hundred twenty billion, twenty-one million, one hundred twenty thousand, two hundred eleven".