1002221343 has 40 divisors (see below), whose sum is σ = 1600464096. Its totient is φ = 623462400.

The previous prime is 1002221333. The next prime is 1002221347. The reversal of 1002221343 is 3431222001.

1002221343 is a `hidden beast` number, since 100 + 2 + 221 + 343 = 666.

It is not a de Polignac number, because 1002221343 - 2⁴ = 1002221327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002221347) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 69823 + ... + 82943.

Almost surely, 2^1002221343 is an apocalyptic number.

1002221343 is a deficient number, since it is larger than the sum of its proper divisors (598242753).

1002221343 is a wasteful number, since it uses less digits than its factorization.

1002221343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13197 (or 13188 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1002221343 is about 31657.8796352504. The cubic root of 1002221343 is about 1000.7399000795.

Adding to 1002221343 its reverse (3431222001), we get a palindrome (4433443344).

The spelling of 1002221343 in words is "one billion, two million, two hundred twenty-one thousand, three hundred forty-three".