21020210000102 has 8 divisors (see below), whose sum is σ = 31533253825800. Its totient is φ = 10509125391504.

The previous prime is 21020210000059. The next prime is 21020210000113. The reversal of 21020210000102 is 20100001202012.

It is a happy number.

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

It is a congruent number.

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, 489777452 + ... + 489820367.

It is an arithmetic number, because the mean of its divisors is an integer number (3941656728225).

Almost surely, 2^{21020210000102} is an apocalyptic number.

21020210000102 is a deficient number, since it is larger than the sum of its proper divisors (10513043825698).

21020210000102 is a wasteful number, since it uses less digits than its factorization.

21020210000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979608550.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 21020210000102 its reverse (20100001202012), we get a palindrome (41120211202114).

The spelling of 21020210000102 in words is "twenty-one trillion, twenty billion, two hundred ten million, one hundred two", and thus it is an aban number.