2221002243 has 6 divisors (see below), whose sum is σ = 3208114364. Its totient is φ = 1480668156.

The previous prime is 2221002239. The next prime is 2221002263. The reversal of 2221002243 is 3422001222.

It is not a de Polignac number, because 2221002243 - 2² = 2221002239 is a prime.

It is a super-2 number, since 2×2221002243² = 9865701926822062098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221002233) 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, 123389005 + ... + 123389022.

Almost surely, 2^2221002243 is an apocalyptic number.

2221002243 is a deficient number, since it is larger than the sum of its proper divisors (987112121).

2221002243 is a wasteful number, since it uses less digits than its factorization.

2221002243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246778033 (or 246778030 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2221002243 is about 47127.5104689395. The cubic root of 2221002243 is about 1304.7170338171.

Adding to 2221002243 its reverse (3422001222), we get a palindrome (5643003465).

The spelling of 2221002243 in words is "two billion, two hundred twenty-one million, two thousand, two hundred forty-three".