21102012101002 has 8 divisors (see below), whose sum is σ = 36174877887456. Its totient is φ = 9043719471852.

The previous prime is 21102012100921. The next prime is 21102012101011. The reversal of 21102012101002 is 20010121020112.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753643289308 + ... + 753643289335.

It is an arithmetic number, because the mean of its divisors is an integer number (4521859735932).

Almost surely, 2^{21102012101002} is an apocalyptic number.

21102012101002 is a deficient number, since it is larger than the sum of its proper divisors (15072865786454).

21102012101002 is a wasteful number, since it uses less digits than its factorization.

21102012101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507286578652.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21102012101002 its reverse (20010121020112), we get a palindrome (41112133121114).

The spelling of 21102012101002 in words is "twenty-one trillion, one hundred two billion, twelve million, one hundred one thousand, two".