12221011000121 has 64 divisors (see below), whose sum is σ = 15497008128000. Its totient is φ = 9361309977600.

The previous prime is 12221011000097. The next prime is 12221011000123. The reversal of 12221011000121 is 12100011012221.

It is a de Polignac number, because none of the positive numbers 2^k-12221011000121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12221011000096 and 12221011000105.

It is not an unprimeable number, because it can be changed into a prime (12221011000123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2628737405 + ... + 2628742053.

It is an arithmetic number, because the mean of its divisors is an integer number (242140752000).

Almost surely, 2^{12221011000121} is an apocalyptic number.

12221011000121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12221011000121 is a deficient number, since it is larger than the sum of its proper divisors (3275997127879).

12221011000121 is a wasteful number, since it uses less digits than its factorization.

12221011000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6710.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12221011000121 its reverse (12100011012221), we get a palindrome (24321022012342).

It can be divided in two parts, 1222101 and 1000121, that added together give a palindrome (2222222).

The spelling of 12221011000121 in words is "twelve trillion, two hundred twenty-one billion, eleven million, one hundred twenty-one", and thus it is an aban number.