2205335221 has 4 divisors (see below), whose sum is σ = 2205551500. Its totient is φ = 2205118944.

The previous prime is 2205335213. The next prime is 2205335267. The reversal of 2205335221 is 1225335022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1225335022 = 2 ⋅612667511.

It can be written as a sum of positive squares in 2 ways, for example, as 777628996 + 1427706225 = 27886^2 + 37785^2 .

It is a cyclic number.

It is not a de Polignac number, because 2205335221 - 2³ = 2205335213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205335291) 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, 92046 + ... + 113503.

It is an arithmetic number, because the mean of its divisors is an integer number (551387875).

Almost surely, 2^2205335221 is an apocalyptic number.

It is an amenable number.

2205335221 is a deficient number, since it is larger than the sum of its proper divisors (216279).

2205335221 is a wasteful number, since it uses less digits than its factorization.

2205335221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216278.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2205335221 is about 46960.9968058601. The cubic root of 2205335221 is about 1301.6419530837.

The spelling of 2205335221 in words is "two billion, two hundred five million, three hundred thirty-five thousand, two hundred twenty-one".