10221211120121 has 8 divisors (see below), whose sum is σ = 10242452494080. Its totient is φ = 10199970785088.

The previous prime is 10221211120103. The next prime is 10221211120223. The reversal of 10221211120121 is 12102111212201.

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 10221211120121 - 2³⁸ = 9946333213177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10221211120121.

It is not an unprimeable number, because it can be changed into a prime (10221211120321) 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, 21291425 + ... + 21766193.

It is an arithmetic number, because the mean of its divisors is an integer number (1280306561760).

Almost surely, 2^{10221211120121} is an apocalyptic number.

It is an amenable number.

10221211120121 is a deficient number, since it is larger than the sum of its proper divisors (21241373959).

10221211120121 is an equidigital number, since it uses as much as digits as its factorization.

10221211120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519463.

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

Adding to 10221211120121 its reverse (12102111212201), we get a palindrome (22323322332322).

The spelling of 10221211120121 in words is "ten trillion, two hundred twenty-one billion, two hundred eleven million, one hundred twenty thousand, one hundred twenty-one".