1001220002 has 16 divisors (see below), whose sum is σ = 1524471840. Its totient is φ = 493117632.

The previous prime is 1001220001. The next prime is 1001220013. The reversal of 1001220002 is 2000221001.

It is not an unprimeable number, because it can be changed into a prime (1001220001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23249 + ... + 50427.

It is an arithmetic number, because the mean of its divisors is an integer number (95279490).

Almost surely, 2^1001220002 is an apocalyptic number.

1001220002 is a deficient number, since it is larger than the sum of its proper divisors (523251838).

1001220002 is a wasteful number, since it uses less digits than its factorization.

1001220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27457.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1001220002 is about 31642.0606471829. The cubic root of 1001220002 is about 1000.4065020670.

Adding to 1001220002 its reverse (2000221001), we get a palindrome (3001441003).

Subtracting 1001220002 from its reverse (2000221001), we obtain a palindrome (999000999).

The spelling of 1001220002 in words is "one billion, one million, two hundred twenty thousand, two".