21200222202 has 8 divisors (see below), whose sum is σ = 42400444416. Its totient is φ = 7066740732.

The previous prime is 21200222171. The next prime is 21200222213. The reversal of 21200222202 is 20222200212.

It is a sphenic number, since it is the product of 3 distinct primes.

21200222202 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1766685178 + ... + 1766685189.

It is an arithmetic number, because the mean of its divisors is an integer number (5300055552).

Almost surely, 2^21200222202 is an apocalyptic number.

21200222202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21200222202 is a wasteful number, since it uses less digits than its factorization.

21200222202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3533370372.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 21200222202 its reverse (20222200212), we get a palindrome (41422422414).

The spelling of 21200222202 in words is "twenty-one billion, two hundred million, two hundred twenty-two thousand, two hundred two".