11022100221 has 16 divisors (see below), whose sum is σ = 16116092928. Its totient is φ = 6645082800.

The previous prime is 11022100213. The next prime is 11022100277. The reversal of 11022100221 is 12200122011.

It is not a de Polignac number, because 11022100221 - 2³ = 11022100213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11022100197 and 11022100206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022100721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868051 + ... + 880656.

It is an arithmetic number, because the mean of its divisors is an integer number (1007255808).

Almost surely, 2^11022100221 is an apocalyptic number.

11022100221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11022100221 is a deficient number, since it is larger than the sum of its proper divisors (5093992707).

11022100221 is a wasteful number, since it uses less digits than its factorization.

11022100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748912.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11022100221 its reverse (12200122011), we get a palindrome (23222222232).

The spelling of 11022100221 in words is "eleven billion, twenty-two million, one hundred thousand, two hundred twenty-one".