21001000200202 has 8 divisors (see below), whose sum is σ = 34365273054912. Its totient is φ = 9545909181900.

The previous prime is 21001000200161. The next prime is 21001000200203. The reversal of 21001000200202 is 20200200010012.

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

It is not an unprimeable number, because it can be changed into a prime (21001000200203) 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, 477295459074 + ... + 477295459117.

It is an arithmetic number, because the mean of its divisors is an integer number (4295659131864).

Almost surely, 2^{21001000200202} is an apocalyptic number.

21001000200202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21001000200202 is a deficient number, since it is larger than the sum of its proper divisors (13364272854710).

21001000200202 is a wasteful number, since it uses less digits than its factorization.

21001000200202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954590918204.

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

Adding to 21001000200202 its reverse (20200200010012), we get a palindrome (41201200210214).

The spelling of 21001000200202 in words is "twenty-one trillion, one billion, two hundred thousand, two hundred two".