2200112021221 has 8 divisors (see below), whose sum is σ = 2224872227160. Its totient is φ = 2175352700928.

The previous prime is 2200112021207. The next prime is 2200112021227. The reversal of 2200112021221 is 1221202110022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 958862016225 + 1241250004996 = 979215^2 + 1114114^2 .

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 2200112021221 - 2¹⁵ = 2200111988453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2200112021195 and 2200112021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200112021227) 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 7 ways as a sum of consecutive naturals, for example, 5644195 + ... + 6021391.

It is an arithmetic number, because the mean of its divisors is an integer number (278109028395).

Almost surely, 2^{2200112021221} is an apocalyptic number.

It is an amenable number.

2200112021221 is a deficient number, since it is larger than the sum of its proper divisors (24760205939).

2200112021221 is an equidigital number, since it uses as much as digits as its factorization.

2200112021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442823.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2200112021221 its reverse (1221202110022), we get a palindrome (3421314131243).

The spelling of 2200112021221 in words is "two trillion, two hundred billion, one hundred twelve million, twenty-one thousand, two hundred twenty-one".