11021221100221 has 8 divisors (see below), whose sum is σ = 11340531528480. Its totient is φ = 10704774442992.

The previous prime is 11021221100209. The next prime is 11021221100249. The reversal of 11021221100221 is 12200112212011.

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 11021221100221 - 2²⁵ = 11021187545789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11021221100195 and 11021221100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021221100251) 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, 715934950 + ... + 715950343.

It is an arithmetic number, because the mean of its divisors is an integer number (1417566441060).

Almost surely, 2^{11021221100221} is an apocalyptic number.

It is an amenable number.

11021221100221 is a deficient number, since it is larger than the sum of its proper divisors (319310428259).

11021221100221 is a wasteful number, since it uses less digits than its factorization.

11021221100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431885515.

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

Adding to 11021221100221 its reverse (12200112212011), we get a palindrome (23221333312232).

The spelling of 11021221100221 in words is "eleven trillion, twenty-one billion, two hundred twenty-one million, one hundred thousand, two hundred twenty-one".