21102002000210 has 64 divisors (see below), whose sum is σ = 38357231028480. Its totient is φ = 8358208277760.

The previous prime is 21102002000207. The next prime is 21102002000213. The reversal of 21102002000210 is 1200020020112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21102002000207) and next prime (21102002000213).

It is a junction number, because it is equal to n+sod(n) for n = 21102002000191 and 21102002000200.

It is not an unprimeable number, because it can be changed into a prime (21102002000213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 928487867 + ... + 928510593.

It is an arithmetic number, because the mean of its divisors is an integer number (599331734820).

Almost surely, 2^{21102002000210} is an apocalyptic number.

21102002000210 is a deficient number, since it is larger than the sum of its proper divisors (17255229028270).

21102002000210 is a wasteful number, since it uses less digits than its factorization.

21102002000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25091.

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

Adding to 21102002000210 its reverse (1200020020112), we get a palindrome (22302022020322).

The spelling of 21102002000210 in words is "twenty-one trillion, one hundred two billion, two million, two hundred ten", and thus it is an aban number.