2213302021 has 6 divisors (see below), whose sum is σ = 2574657510. Its totient is φ = 1897115976.

The previous prime is 2213301991. The next prime is 2213302031. The reversal of 2213302021 is 1202033122.

It can be written as a sum of positive squares in only one way, i.e., 1688388100 + 524913921 = 41090^2 + 22911^2 .

It is not a de Polignac number, because 2213302021 - 2¹¹ = 2213299973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2213301986 and 2213302004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213302031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22584666 + ... + 22584763.

It is an arithmetic number, because the mean of its divisors is an integer number (429109585).

Almost surely, 2^2213302021 is an apocalyptic number.

It is an amenable number.

2213302021 is a deficient number, since it is larger than the sum of its proper divisors (361355489).

2213302021 is an equidigital number, since it uses as much as digits as its factorization.

2213302021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45169443 (or 45169436 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2213302021 is about 47045.7439201465. The cubic root of 2213302021 is about 1303.2074685149.

Adding to 2213302021 its reverse (1202033122), we get a palindrome (3415335143).

The spelling of 2213302021 in words is "two billion, two hundred thirteen million, three hundred two thousand, twenty-one".