20201220002 has 16 divisors (see below), whose sum is σ = 31229610720. Its totient is φ = 9794729952.

The previous prime is 20201219989. The next prime is 20201220031. The reversal of 20201220002 is 20002210202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833003 + ... + 856910.

It is an arithmetic number, because the mean of its divisors is an integer number (1951850670).

Almost surely, 2^20201220002 is an apocalyptic number.

20201220002 is a deficient number, since it is larger than the sum of its proper divisors (11028390718).

20201220002 is a wasteful number, since it uses less digits than its factorization.

20201220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690097.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20201220002 its reverse (20002210202), we get a palindrome (40203430204).

The spelling of 20201220002 in words is "twenty billion, two hundred one million, two hundred twenty thousand, two".