21002012020214 has 8 divisors (see below), whose sum is σ = 31604313909168. Its totient is φ = 10467240717160.

The previous prime is 21002012020151. The next prime is 21002012020217. The reversal of 21002012020214 is 41202021020012.

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

It is a junction number, because it is equal to n+sod(n) for n = 21002012020192 and 21002012020201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002012020217) 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, 16882645697 + ... + 16882646940.

It is an arithmetic number, because the mean of its divisors is an integer number (3950539238646).

Almost surely, 2^{21002012020214} is an apocalyptic number.

21002012020214 is a deficient number, since it is larger than the sum of its proper divisors (10602301888954).

21002012020214 is a wasteful number, since it uses less digits than its factorization.

21002012020214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33765292950.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21002012020214 its reverse (41202021020012), we get a palindrome (62204033040226).

The spelling of 21002012020214 in words is "twenty-one trillion, two billion, twelve million, twenty thousand, two hundred fourteen".