21201202002 has 16 divisors (see below), whose sum is σ = 43770223872. Its totient is φ = 6839097360.

The previous prime is 21201201997. The next prime is 21201202037. The reversal of 21201202002 is 20020210212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56992293 + ... + 56992664.

It is an arithmetic number, because the mean of its divisors is an integer number (2735638992).

Almost surely, 2^21201202002 is an apocalyptic number.

21201202002 is an abundant number, since it is smaller than the sum of its proper divisors (22569021870).

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

21201202002 is a wasteful number, since it uses less digits than its factorization.

21201202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113984993.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 21201202002 its reverse (20020210212), we get a palindrome (41221412214).

The spelling of 21201202002 in words is "twenty-one billion, two hundred one million, two hundred two thousand, two".