2203013221 has 4 divisors (see below), whose sum is σ = 2332602252. Its totient is φ = 2073424192.

The previous prime is 2203013201. The next prime is 2203013237. The reversal of 2203013221 is 1223103022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 584962596 + 1618050625 = 24186^2 + 40225^2 .

It is a cyclic number.

It is not a de Polignac number, because 2203013221 - 2¹³ = 2203005029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2203013195 and 2203013204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203013201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64794490 + ... + 64794523.

It is an arithmetic number, because the mean of its divisors is an integer number (583150563).

Almost surely, 2^2203013221 is an apocalyptic number.

It is an amenable number.

2203013221 is a deficient number, since it is larger than the sum of its proper divisors (129589031).

2203013221 is a wasteful number, since it uses less digits than its factorization.

2203013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129589030.

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

The square root of 2203013221 is about 46936.2676509328. The cubic root of 2203013221 is about 1301.1849592181.

Adding to 2203013221 its reverse (1223103022), we get a palindrome (3426116243).

The spelling of 2203013221 in words is "two billion, two hundred three million, thirteen thousand, two hundred twenty-one".