1002212243 has 4 divisors (see below), whose sum is σ = 1002292368. Its totient is φ = 1002132120.

The previous prime is 1002212219. The next prime is 1002212251. The reversal of 1002212243 is 3422122001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3422122001 = 89 ⋅38450809.

It is a cyclic number.

It is not a de Polignac number, because 1002212243 - 2¹⁸ = 1001950099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002212213) 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, 16796 + ... + 47817.

It is an arithmetic number, because the mean of its divisors is an integer number (250573092).

Almost surely, 2^1002212243 is an apocalyptic number.

1002212243 is a deficient number, since it is larger than the sum of its proper divisors (80125).

1002212243 is an equidigital number, since it uses as much as digits as its factorization.

1002212243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80124.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1002212243 is about 31657.7359108323. The cubic root of 1002212243 is about 1000.7368712208.

Adding to 1002212243 its reverse (3422122001), we get a palindrome (4424334244).

The spelling of 1002212243 in words is "one billion, two million, two hundred twelve thousand, two hundred forty-three".