2212211200221 has 24 divisors (see below), whose sum is σ = 3485974280256. Its totient is φ = 1340708783040.

The previous prime is 2212211200219. The next prime is 2212211200237. The reversal of 2212211200221 is 1220021122122.

It is a happy number.

2212211200221 is a `hidden beast` number, since 2 + 21 + 221 + 1 + 200 + 221 = 666.

It is not a de Polignac number, because 2212211200221 - 2¹ = 2212211200219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2212211200194 and 2212211200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212211200261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5981536 + ... + 6340598.

It is an arithmetic number, because the mean of its divisors is an integer number (145248928344).

Almost surely, 2^{2212211200221} is an apocalyptic number.

It is an amenable number.

2212211200221 is a deficient number, since it is larger than the sum of its proper divisors (1273763080035).

2212211200221 is a wasteful number, since it uses less digits than its factorization.

2212211200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421313 (or 421310 counting only the distinct ones).

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

Adding to 2212211200221 its reverse (1220021122122), we get a palindrome (3432232322343).

The spelling of 2212211200221 in words is "two trillion, two hundred twelve billion, two hundred eleven million, two hundred thousand, two hundred twenty-one".