11210222221 has 8 divisors (see below), whose sum is σ = 12231134784. Its totient is φ = 10189609920.

The previous prime is 11210222207. The next prime is 11210222237. The reversal of 11210222221 is 12222201211.

It is a happy number.

11210222221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11210222221 - 2⁵ = 11210222189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11210222195 and 11210222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210222321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6901 + ... + 149893.

It is an arithmetic number, because the mean of its divisors is an integer number (1528891848).

Almost surely, 2^11210222221 is an apocalyptic number.

11210222221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11210222221 is a deficient number, since it is larger than the sum of its proper divisors (1020912563).

11210222221 is a wasteful number, since it uses less digits than its factorization.

11210222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150131.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11210222221 its reverse (12222201211), we get a palindrome (23432423432).

The spelling of 11210222221 in words is "eleven billion, two hundred ten million, two hundred twenty-two thousand, two hundred twenty-one".