210010000021210 has 8 divisors (see below), whose sum is σ = 378018000038196. Its totient is φ = 84004000008480.

The previous prime is 210010000021193. The next prime is 210010000021247. The reversal of 210010000021210 is 12120000010012.

It can be written as a sum of positive squares in 2 ways, for example, as 208918896516729 + 1091103504481 = 14454027^2 + 1044559^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 21001000002121 = 210010000021210 / (2 + 1 + 0 + 0 + 1 + 0 + 0 + 0 + 0 + 0 + 2 + 1 + 2 + 1 + 0).

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, 10500500001051 + ... + 10500500001070.

Almost surely, 2^{210010000021210} is an apocalyptic number.

210010000021210 is a deficient number, since it is larger than the sum of its proper divisors (168008000016986).

210010000021210 is a wasteful number, since it uses less digits than its factorization.

210010000021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21001000002128.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 210010000021210 its reverse (12120000010012), we get a palindrome (222130000031222).

The spelling of 210010000021210 in words is "two hundred ten trillion, ten billion, twenty-one thousand, two hundred ten".