1002211222208 has 56 divisors (see below), whose sum is σ = 2276474536704. Its totient is φ = 428838278400.

The previous prime is 1002211222189. The next prime is 1002211222211. The reversal of 1002211222208 is 8022221122001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1489958 + ... + 2055333.

Almost surely, 2^{1002211222208} is an apocalyptic number.

It is an amenable number.

1002211222208 is an abundant number, since it is smaller than the sum of its proper divisors (1274263314496).

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

1002211222208 is an equidigital number, since it uses as much as digits as its factorization.

1002211222208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545941 (or 3545931 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 1002211222208 its reverse (8022221122001), we get a palindrome (9024432344209).

The spelling of 1002211222208 in words is "one trillion, two billion, two hundred eleven million, two hundred twenty-two thousand, two hundred eight".