12220111012121 has 8 divisors (see below), whose sum is σ = 12647140262400. Its totient is φ = 11793458169360.

The previous prime is 12220111012091. The next prime is 12220111012331. The reversal of 12220111012121 is 12121011102221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12220111012121 is a prime.

It is a super-2 number, since 2×12220111012121² (a number of 27 digits) contains 22 as substring.

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 12220111012121.

It is not an unprimeable number, because it can be changed into a prime (12220111012621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94035815 + ... + 94165676.

It is an arithmetic number, because the mean of its divisors is an integer number (1580892532800).

Almost surely, 2^{12220111012121} is an apocalyptic number.

It is an amenable number.

12220111012121 is a deficient number, since it is larger than the sum of its proper divisors (427029250279).

12220111012121 is a wasteful number, since it uses less digits than its factorization.

12220111012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188203759.

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

Adding to 12220111012121 its reverse (12121011102221), we get a palindrome (24341122114342).

The spelling of 12220111012121 in words is "twelve trillion, two hundred twenty billion, one hundred eleven million, twelve thousand, one hundred twenty-one".