11010221221 has 8 divisors (see below), whose sum is σ = 11469931200. Its totient is φ = 10559614560.

The previous prime is 11010221197. The next prime is 11010221227. The reversal of 11010221221 is 12212201011.

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 11010221221 - 2⁹ = 11010220709 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 (11010221227) 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, 2273361 + ... + 2278198.

It is an arithmetic number, because the mean of its divisors is an integer number (1433741400).

Almost surely, 2^11010221221 is an apocalyptic number.

It is an amenable number.

11010221221 is a deficient number, since it is larger than the sum of its proper divisors (459709979).

11010221221 is an equidigital number, since it uses as much as digits as its factorization.

11010221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4551659.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11010221221 its reverse (12212201011), we get a palindrome (23222422232).

The spelling of 11010221221 in words is "eleven billion, ten million, two hundred twenty-one thousand, two hundred twenty-one".