12220121111011 has 8 divisors (see below), whose sum is σ = 13331363629248. Its totient is φ = 11108932329000.

The previous prime is 12220121110969. The next prime is 12220121111041. The reversal of 12220121111011 is 11011112102221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12220121111011 - 2³⁵ = 12185761372643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220121111041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12957825 + ... + 13868866.

It is an arithmetic number, because the mean of its divisors is an integer number (1666420453656).

Almost surely, 2^{12220121111011} is an apocalyptic number.

12220121111011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12220121111011 is a deficient number, since it is larger than the sum of its proper divisors (1111242518237).

12220121111011 is a wasteful number, since it uses less digits than its factorization.

12220121111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26868113.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 12220121111011 its reverse (11011112102221), we get a palindrome (23231233213232).

It can be divided in two parts, 122201 and 21111011, that added together give a palindrome (21233212).

The spelling of 12220121111011 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-one million, one hundred eleven thousand, eleven".