2200221021 has 32 divisors (see below), whose sum is σ = 3088834560. Its totient is φ = 1391667264.

The previous prime is 2200221019. The next prime is 2200221029. The reversal of 2200221021 is 1201220022.

It is not a de Polignac number, because 2200221021 - 2¹ = 2200221019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2200220988 and 2200221006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200221029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 726316 + ... + 729338.

It is an arithmetic number, because the mean of its divisors is an integer number (96526080).

Almost surely, 2^2200221021 is an apocalyptic number.

It is an amenable number.

2200221021 is a deficient number, since it is larger than the sum of its proper divisors (888613539).

2200221021 is a wasteful number, since it uses less digits than its factorization.

2200221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3225.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2200221021 is about 46906.5136308381. The cubic root of 2200221021 is about 1300.6349996387.

Adding to 2200221021 its reverse (1201220022), we get a palindrome (3401441043).

Subtracting from 2200221021 its reverse (1201220022), we obtain a palindrome (999000999).

The spelling of 2200221021 in words is "two billion, two hundred million, two hundred twenty-one thousand, twenty-one".