11000222022221 has 16 divisors (see below), whose sum is σ = 11234061831168. Its totient is φ = 10768165228800.

The previous prime is 11000222022199. The next prime is 11000222022247. The reversal of 11000222022221 is 12222022200011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11000222022221 - 2²⁶ = 11000154913357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11000222022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000222024221) 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, 23035340 + ... + 23508026.

It is an arithmetic number, because the mean of its divisors is an integer number (702128864448).

Almost surely, 2^{11000222022221} is an apocalyptic number.

It is an amenable number.

11000222022221 is a deficient number, since it is larger than the sum of its proper divisors (233839808947).

11000222022221 is a wasteful number, since it uses less digits than its factorization.

11000222022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474572.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 11000222022221 its reverse (12222022200011), we get a palindrome (23222244222232).

The spelling of 11000222022221 in words is "eleven trillion, two hundred twenty-two million, twenty-two thousand, two hundred twenty-one".