21001202202 has 8 divisors (see below), whose sum is σ = 42002404416. Its totient is φ = 7000400732.

The previous prime is 21001202191. The next prime is 21001202203. The reversal of 21001202202 is 20220210012.

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

21001202202 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (21001202203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750100178 + ... + 1750100189.

It is an arithmetic number, because the mean of its divisors is an integer number (5250300552).

Almost surely, 2^21001202202 is an apocalyptic number.

21001202202 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.

21001202202 is a wasteful number, since it uses less digits than its factorization.

21001202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500200372.

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

Adding to 21001202202 its reverse (20220210012), we get a palindrome (41221412214).

The spelling of 21001202202 in words is "twenty-one billion, one million, two hundred two thousand, two hundred two".