2200221221 has 8 divisors (see below), whose sum is σ = 2424987264. Its totient is φ = 1979579520.

The previous prime is 2200221217. The next prime is 2200221229. The reversal of 2200221221 is 1221220022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2200221221 - 2² = 2200221217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2200221196 and 2200221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200221229) 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 7 ways as a sum of consecutive naturals, for example, 1029965 + ... + 1032098.

It is an arithmetic number, because the mean of its divisors is an integer number (303123408).

Almost surely, 2^2200221221 is an apocalyptic number.

It is an amenable number.

2200221221 is a deficient number, since it is larger than the sum of its proper divisors (224766043).

2200221221 is a wasteful number, since it uses less digits than its factorization.

2200221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062171.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2200221221 is about 46906.5157627381. The cubic root of 2200221221 is about 1300.6350390479.

Adding to 2200221221 its reverse (1221220022), we get a palindrome (3421441243).

It can be divided in two parts, 220022 and 1221, that multiplied together give a palindrome (268646862).

The spelling of 2200221221 in words is "two billion, two hundred million, two hundred twenty-one thousand, two hundred twenty-one".