210000121211210 has 32 divisors (see below), whose sum is σ = 412370784048384. Its totient is φ = 76362400872000.

The previous prime is 210000121211159. The next prime is 210000121211239. The reversal of 210000121211210 is 12112121000012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9387701 + ... + 22541720.

It is an arithmetic number, because the mean of its divisors is an integer number (12886587001512).

Almost surely, 2^{210000121211210} is an apocalyptic number.

210000121211210 is a deficient number, since it is larger than the sum of its proper divisors (202370662837174).

210000121211210 is a wasteful number, since it uses less digits than its factorization.

210000121211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31989230.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210000121211210 its reverse (12112121000012), we get a palindrome (222112242211222).

It can be divided in two parts, 21000012 and 1211210, that added together give a palindrome (22211222).

The spelling of 210000121211210 in words is "two hundred ten trillion, one hundred twenty-one million, two hundred eleven thousand, two hundred ten".