1000002222 has 12 divisors (see below), whose sum is σ = 2166671520. Its totient is φ = 333334068.

The previous prime is 1000002193. The next prime is 1000002233. The reversal of 1000002222 is 2222000001.

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

1000002222 is a modest number, since divided by 2222 gives 10 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27777822 + ... + 27777857.

It is an arithmetic number, because the mean of its divisors is an integer number (180555960).

Almost surely, 2^1000002222 is an apocalyptic number.

1000002222 is an abundant number, since it is smaller than the sum of its proper divisors (1166669298).

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

1000002222 is a wasteful number, since it uses less digits than its factorization.

1000002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55555687 (or 55555684 counting only the distinct ones).

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

The square root of 1000002222 is about 31622.8117345691. The cubic root of 1000002222 is about 1000.0007406661. Note that the first 3 decimals are identical.

Adding to 1000002222 its reverse (2222000001), we get a palindrome (3222002223).

The spelling of 1000002222 in words is "one billion, two thousand, two hundred twenty-two".