20101220100110 has 8 divisors (see below), whose sum is σ = 36182196180216. Its totient is φ = 8040488040040.

The previous prime is 20101220100067. The next prime is 20101220100167. The reversal of 20101220100110 is 1100102210102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20101220100091 and 20101220100100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005061004996 + ... + 1005061005015.

It is an arithmetic number, because the mean of its divisors is an integer number (4522774522527).

Almost surely, 2^{20101220100110} is an apocalyptic number.

20101220100110 is a deficient number, since it is larger than the sum of its proper divisors (16080976080106).

20101220100110 is a wasteful number, since it uses less digits than its factorization.

20101220100110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010122010018.

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

Adding to 20101220100110 its reverse (1100102210102), we get a palindrome (21201322310212).

The spelling of 20101220100110 in words is "twenty trillion, one hundred one billion, two hundred twenty million, one hundred thousand, one hundred ten".