2222021200221 has 24 divisors (see below), whose sum is σ = 3322287181824. Its totient is φ = 1429962115680.

The previous prime is 2222021200169. The next prime is 2222021200279. The reversal of 2222021200221 is 1220021202222.

2222021200221 is a `hidden beast` number, since 2 + 2 + 220 + 21 + 200 + 221 = 666.

It is not a de Polignac number, because 2222021200221 - 2⁹ = 2222021199709 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2222021200194 and 2222021200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222021200621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26228325 + ... + 26312906.

It is an arithmetic number, because the mean of its divisors is an integer number (138428632576).

Almost surely, 2^{2222021200221} is an apocalyptic number.

It is an amenable number.

2222021200221 is a deficient number, since it is larger than the sum of its proper divisors (1100265981603).

2222021200221 is a wasteful number, since it uses less digits than its factorization.

2222021200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52541401 (or 52541398 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2222021200221 its reverse (1220021202222), we get a palindrome (3442042402443).

It can be divided in two parts, 2222021 and 200221, that added together give a palindrome (2422242).

The spelling of 2222021200221 in words is "two trillion, two hundred twenty-two billion, twenty-one million, two hundred thousand, two hundred twenty-one".