11101220102221 has 8 divisors (see below), whose sum is σ = 11293125933600. Its totient is φ = 10909439256240.

The previous prime is 11101220102209. The next prime is 11101220102243. The reversal of 11101220102221 is 12220102210111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11101220102221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11101220102195 and 11101220102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101220102261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31067166 + ... + 31422463.

It is an arithmetic number, because the mean of its divisors is an integer number (1411640741700).

Almost surely, 2^{11101220102221} is an apocalyptic number.

It is an amenable number.

11101220102221 is a deficient number, since it is larger than the sum of its proper divisors (191905831379).

11101220102221 is an equidigital number, since it uses as much as digits as its factorization.

11101220102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62492699.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11101220102221 its reverse (12220102210111), we get a palindrome (23321322312332).

The spelling of 11101220102221 in words is "eleven trillion, one hundred one billion, two hundred twenty million, one hundred two thousand, two hundred twenty-one".