12221100010121 has 8 divisors (see below), whose sum is σ = 12404775092160. Its totient is φ = 12037462298928.

The previous prime is 12221100010117. The next prime is 12221100010129. The reversal of 12221100010121 is 12101000112221.

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

It is a cyclic number.

It is not a de Polignac number, because 12221100010121 - 2² = 12221100010117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12221100010096 and 12221100010105.

It is not an unprimeable number, because it can be changed into a prime (12221100010129) 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, 8683406 + ... + 9992183.

It is an arithmetic number, because the mean of its divisors is an integer number (1550596886520).

Almost surely, 2^{12221100010121} is an apocalyptic number.

It is an amenable number.

12221100010121 is a deficient number, since it is larger than the sum of its proper divisors (183675082039).

12221100010121 is an equidigital number, since it uses as much as digits as its factorization.

12221100010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18685423.

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

Adding to 12221100010121 its reverse (12101000112221), we get a palindrome (24322100122342).

The spelling of 12221100010121 in words is "twelve trillion, two hundred twenty-one billion, one hundred million, ten thousand, one hundred twenty-one".