21110210000201 has 12 divisors (see below), whose sum is σ = 25403560241220. Its totient is φ = 17470518619680.

The previous prime is 21110210000179. The next prime is 21110210000249. The reversal of 21110210000201 is 10200001201112.

It can be written as a sum of positive squares in 2 ways, for example, as 14905622208400 + 6204587791801 = 3860780^2 + 2490901^2 .

It is a de Polignac number, because none of the positive numbers 2^k-21110210000201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21110210000281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7427940170 + ... + 7427943011.

It is an arithmetic number, because the mean of its divisors is an integer number (2116963353435).

Almost surely, 2^{21110210000201} is an apocalyptic number.

It is an amenable number.

21110210000201 is a deficient number, since it is larger than the sum of its proper divisors (4293350241019).

21110210000201 is a wasteful number, since it uses less digits than its factorization.

21110210000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14855883224 (or 14855883217 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21110210000201 its reverse (10200001201112), we get a palindrome (31310211201313).

The spelling of 21110210000201 in words is "twenty-one trillion, one hundred ten billion, two hundred ten million, two hundred one", and thus it is an aban number.