11102121221021 has 8 divisors (see below), whose sum is σ = 11299120281600. Its totient is φ = 10905416411040.

The previous prime is 11102121220997. The next prime is 11102121221041. The reversal of 11102121221021 is 12012212120111.

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 11102121221021 - 2²² = 11102117026717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102121221041) 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, 73486520 + ... + 73637441.

It is an arithmetic number, because the mean of its divisors is an integer number (1412390035200).

Almost surely, 2^{11102121221021} is an apocalyptic number.

It is an amenable number.

11102121221021 is a deficient number, since it is larger than the sum of its proper divisors (196999060579).

11102121221021 is a wasteful number, since it uses less digits than its factorization.

11102121221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147125299.

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

Adding to 11102121221021 its reverse (12012212120111), we get a palindrome (23114333341132).

The spelling of 11102121221021 in words is "eleven trillion, one hundred two billion, one hundred twenty-one million, two hundred twenty-one thousand, twenty-one".