2222200201221 has 192 divisors, whose sum is σ = 4413933748224. Its totient is φ = 1039868928000.

The previous prime is 2222200201217. The next prime is 2222200201253. The reversal of 2222200201221 is 1221020022222.

2222200201221 is a `hidden beast` number, since 2 + 22 + 220 + 0 + 201 + 221 = 666.

It is not a de Polignac number, because 2222200201221 - 2² = 2222200201217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2222200201194 and 2222200201203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222200201201) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 620204796 + ... + 620208378.

It is an arithmetic number, because the mean of its divisors is an integer number (22989238272).

Almost surely, 2^{2222200201221} is an apocalyptic number.

2222200201221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2222200201221 is a deficient number, since it is larger than the sum of its proper divisors (2191733547003).

2222200201221 is a wasteful number, since it uses less digits than its factorization.

2222200201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5264 (or 5261 counting only the distinct ones).

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

Adding to 2222200201221 its reverse (1221020022222), we get a palindrome (3443220223443).

The spelling of 2222200201221 in words is "two trillion, two hundred twenty-two billion, two hundred million, two hundred one thousand, two hundred twenty-one".