20121110020210 has 16 divisors (see below), whose sum is σ = 37196862848856. Its totient is φ = 7830918494208.

The previous prime is 20121110020183. The next prime is 20121110020223. The reversal of 20121110020210 is 1202001112102.

It can be written as a sum of positive squares in 4 ways, for example, as 16000888012321 + 4120222007889 = 4000111^2 + 2029833^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27190688847 + ... + 27190689586.

Almost surely, 2^{20121110020210} is an apocalyptic number.

20121110020210 is a deficient number, since it is larger than the sum of its proper divisors (17075752828646).

20121110020210 is a wasteful number, since it uses less digits than its factorization.

20121110020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54381378477.

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

Adding to 20121110020210 its reverse (1202001112102), we get a palindrome (21323111132312).

The spelling of 20121110020210 in words is "twenty trillion, one hundred twenty-one billion, one hundred ten million, twenty thousand, two hundred ten".