12220011211121 has 16 divisors (see below), whose sum is σ = 14014093632000. Its totient is φ = 10438079275008.

The previous prime is 12220011211091. The next prime is 12220011211139. The reversal of 12220011211121 is 12111211002221.

It is a de Polignac number, because none of the positive numbers 2^k-12220011211121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12220011211121.

It is not an unprimeable number, because it can be changed into a prime (12220011211021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40805 + ... + 4943853.

It is an arithmetic number, because the mean of its divisors is an integer number (875880852000).

Almost surely, 2^{12220011211121} is an apocalyptic number.

It is an amenable number.

12220011211121 is a deficient number, since it is larger than the sum of its proper divisors (1794082420879).

12220011211121 is an equidigital number, since it uses as much as digits as its factorization.

12220011211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4904288.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12220011211121 its reverse (12111211002221), we get a palindrome (24331222213342).

The spelling of 12220011211121 in words is "twelve trillion, two hundred twenty billion, eleven million, two hundred eleven thousand, one hundred twenty-one".