20121010020110 has 16 divisors (see below), whose sum is σ = 36218625854400. Its totient is φ = 8048224492896.

The previous prime is 20121010020109. The next prime is 20121010020113. The reversal of 20121010020110 is 1102001012102.

It is a junction number, because it is equal to n+sod(n) for n = 20121010020091 and 20121010020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121010020113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21968165 + ... + 22865744.

It is an arithmetic number, because the mean of its divisors is an integer number (2263664115900).

Almost surely, 2^{20121010020110} is an apocalyptic number.

20121010020110 is a deficient number, since it is larger than the sum of its proper divisors (16097615834290).

20121010020110 is a wasteful number, since it uses less digits than its factorization.

20121010020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44878795.

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

Adding to 20121010020110 its reverse (1102001012102), we get a palindrome (21223011032212).

The spelling of 20121010020110 in words is "twenty trillion, one hundred twenty-one billion, ten million, twenty thousand, one hundred ten".