1002220002 has 24 divisors (see below), whose sum is σ = 2481687936. Its totient is φ = 286348536.

The previous prime is 1002220001. The next prime is 1002220033. The reversal of 1002220002 is 2000222001.

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

It is not an unprimeable number, because it can be changed into a prime (1002220001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3976938 + ... + 3977189.

It is an arithmetic number, because the mean of its divisors is an integer number (103403664).

Almost surely, 2^1002220002 is an apocalyptic number.

1002220002 is an abundant number, since it is smaller than the sum of its proper divisors (1479467934).

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

1002220002 is a wasteful number, since it uses less digits than its factorization.

1002220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7954142 (or 7954139 counting only the distinct ones).

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

The square root of 1002220002 is about 31657.8584556821. The cubic root of 1002220002 is about 1000.7394537401.

Adding to 1002220002 its reverse (2000222001), we get a palindrome (3002442003).

The spelling of 1002220002 in words is "one billion, two million, two hundred twenty thousand, two".