2222111200221 has 32 divisors (see below), whose sum is σ = 3594893404800. Its totient is φ = 1345383095040.

The previous prime is 2222111200219. The next prime is 2222111200223. The reversal of 2222111200221 is 1220021112222.

It is a happy number.

2222111200221 is a `hidden beast` number, since 22 + 221 + 1 + 1 + 200 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (2222111200219) and next prime (2222111200223).

It is not a de Polignac number, because 2222111200221 - 2¹ = 2222111200219 is a prime.

It is a super-2 number, since 2×2222111200221² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2222111200194 and 2222111200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222111200223) 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 31 ways as a sum of consecutive naturals, for example, 3456076 + ... + 4048293.

It is an arithmetic number, because the mean of its divisors is an integer number (112340418900).

Almost surely, 2^{2222111200221} is an apocalyptic number.

It is an amenable number.

2222111200221 is a deficient number, since it is larger than the sum of its proper divisors (1372782204579).

2222111200221 is a wasteful number, since it uses less digits than its factorization.

2222111200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505386 (or 7505380 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2222111200221 its reverse (1220021112222), we get a palindrome (3442132312443).

The spelling of 2222111200221 in words is "two trillion, two hundred twenty-two billion, one hundred eleven million, two hundred thousand, two hundred twenty-one".