1002222 has 24 divisors (see below), whose sum is σ = 2339064. Its totient is φ = 308304.

The previous prime is 1002191. The next prime is 1002227. The reversal of 1002222 is 2222001.

It is a Harshad number since it is a multiple of its sum of digits (9).

1002222 is a modest number, since divided by 2222 gives 100 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1908 + ... + 2375.

It is an arithmetic number, because the mean of its divisors is an integer number (97461).

2^1002222 is an apocalyptic number.

1002222 is an abundant number, since it is smaller than the sum of its proper divisors (1336842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1002222 is a wasteful number, since it uses less digits than its factorization.

1002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304 (or 4301 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 1002222 is about 1001.1103835242. The cubic root of 1002222 is about 100.0740118756.

Adding to 1002222 its reverse (2222001), we get a palindrome (3224223).

The spelling of 1002222 in words is "one million, two thousand, two hundred twenty-two".