11021110202221 has 8 divisors (see below), whose sum is σ = 12596445215744. Its totient is φ = 9445997863440.

The previous prime is 11021110202197. The next prime is 11021110202237. The reversal of 11021110202221 is 12220201112011.

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 11021110202221 - 2¹⁷ = 11021110071149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021110202195 and 11021110202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021110202321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55562610 + ... + 55760611.

It is an arithmetic number, because the mean of its divisors is an integer number (1574555651968).

Almost surely, 2^{11021110202221} is an apocalyptic number.

It is an amenable number.

11021110202221 is a deficient number, since it is larger than the sum of its proper divisors (1575335013523).

11021110202221 is a wasteful number, since it uses less digits than its factorization.

11021110202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111337371.

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

Adding to 11021110202221 its reverse (12220201112011), we get a palindrome (23241311314232).

The spelling of 11021110202221 in words is "eleven trillion, twenty-one billion, one hundred ten million, two hundred two thousand, two hundred twenty-one".