21202000100212 has 48 divisors (see below), whose sum is σ = 37346277185280. Its totient is φ = 10531906560000.

The previous prime is 21202000100161. The next prime is 21202000100213. The reversal of 21202000100212 is 21200100020212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21202000100192 and 21202000100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202000100213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 522492468 + ... + 522533044.

It is an arithmetic number, because the mean of its divisors is an integer number (778047441360).

Almost surely, 2^{21202000100212} is an apocalyptic number.

It is an amenable number.

21202000100212 is a deficient number, since it is larger than the sum of its proper divisors (16144277085068).

21202000100212 is a wasteful number, since it uses less digits than its factorization.

21202000100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42232 (or 42230 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21202000100212 its reverse (21200100020212), we get a palindrome (42402100120424).

The spelling of 21202000100212 in words is "twenty-one trillion, two hundred two billion, one hundred thousand, two hundred twelve".