21110102002210 has 32 divisors (see below), whose sum is σ = 41791782961152. Its totient is φ = 7628658790080.

The previous prime is 21110102002193. The next prime is 21110102002211. The reversal of 21110102002210 is 1220020101112.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (21110102002211) 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, 1727498146 + ... + 1727510365.

It is an arithmetic number, because the mean of its divisors is an integer number (1305993217536).

Almost surely, 2^{21110102002210} is an apocalyptic number.

21110102002210 is a deficient number, since it is larger than the sum of its proper divisors (20681680958942).

21110102002210 is a wasteful number, since it uses less digits than its factorization.

21110102002210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3455008578.

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

Adding to 21110102002210 its reverse (1220020101112), we get a palindrome (22330122103322).

The spelling of 21110102002210 in words is "twenty-one trillion, one hundred ten billion, one hundred two million, two thousand, two hundred ten".