2200222001221 has 16 divisors (see below), whose sum is σ = 2321116560000. Its totient is φ = 2079841010688.

The previous prime is 2200222001207. The next prime is 2200222001227. The reversal of 2200222001221 is 1221002220022.

It is not a de Polignac number, because 2200222001221 - 2⁵ = 2200222001189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2200222001195 and 2200222001204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200222001227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19033405 + ... + 19148653.

It is an arithmetic number, because the mean of its divisors is an integer number (145069785000).

Almost surely, 2^{2200222001221} is an apocalyptic number.

It is an amenable number.

2200222001221 is a deficient number, since it is larger than the sum of its proper divisors (120894558779).

2200222001221 is a wasteful number, since it uses less digits than its factorization.

2200222001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117468.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2200222001221 its reverse (1221002220022), we get a palindrome (3421224221243).

The spelling of 2200222001221 in words is "two trillion, two hundred billion, two hundred twenty-two million, one thousand, two hundred twenty-one".