10002101121221 has 8 divisors (see below), whose sum is σ = 10912183922784. Its totient is φ = 9092151799920.

The previous prime is 10002101121167. The next prime is 10002101121241. The reversal of 10002101121221 is 12212110120001.

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 10002101121221 - 2⁶ = 10002101121157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10002101121196 and 10002101121205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002101121241) 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, 33213350 + ... + 33513143.

It is an arithmetic number, because the mean of its divisors is an integer number (1364022990348).

Almost surely, 2^{10002101121221} is an apocalyptic number.

10002101121221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10002101121221 is a deficient number, since it is larger than the sum of its proper divisors (910082801563).

10002101121221 is a wasteful number, since it uses less digits than its factorization.

10002101121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66740131.

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

Adding to 10002101121221 its reverse (12212110120001), we get a palindrome (22214211241222).

The spelling of 10002101121221 in words is "ten trillion, two billion, one hundred one million, one hundred twenty-one thousand, two hundred twenty-one".