21201000000202 has 8 divisors (see below), whose sum is σ = 34692545454912. Its totient is φ = 9636818181900.

The previous prime is 21201000000199. The next prime is 21201000000217. The reversal of 21201000000202 is 20200000010212.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481840909074 + ... + 481840909117.

It is an arithmetic number, because the mean of its divisors is an integer number (4336568181864).

Almost surely, 2^{21201000000202} is an apocalyptic number.

21201000000202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21201000000202 is a deficient number, since it is larger than the sum of its proper divisors (13491545454710).

21201000000202 is a wasteful number, since it uses less digits than its factorization.

21201000000202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963681818204.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 21201000000202 its reverse (20200000010212), we get a palindrome (41401000010414).

The spelling of 21201000000202 in words is "twenty-one trillion, two hundred one billion, two hundred two", and thus it is an aban number.