21200100011002 has 8 divisors (see below), whose sum is σ = 34691072745312. Its totient is φ = 9636409095900.

The previous prime is 21200100010987. The next prime is 21200100011009. The reversal of 21200100011002 is 20011000100212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21200100011002.

It is not an unprimeable number, because it can be changed into a prime (21200100011009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481820454774 + ... + 481820454817.

It is an arithmetic number, because the mean of its divisors is an integer number (4336384093164).

Almost surely, 2^{21200100011002} is an apocalyptic number.

21200100011002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21200100011002 is a deficient number, since it is larger than the sum of its proper divisors (13490972734310).

21200100011002 is a wasteful number, since it uses less digits than its factorization.

21200100011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963640909604.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21200100011002 its reverse (20011000100212), we get a palindrome (41211100111214).

The spelling of 21200100011002 in words is "twenty-one trillion, two hundred billion, one hundred million, eleven thousand, two".