121220102010110 has 64 divisors (see below), whose sum is σ = 230990644684800. Its totient is φ = 45723107428992.

The previous prime is 121220102010047. The next prime is 121220102010121. The reversal of 121220102010110 is 11010201022121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137466227 + ... + 138345233.

It is an arithmetic number, because the mean of its divisors is an integer number (3609228823200).

Almost surely, 2^{121220102010110} is an apocalyptic number.

121220102010110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121220102010110 is a deficient number, since it is larger than the sum of its proper divisors (109770542674690).

121220102010110 is a wasteful number, since it uses less digits than its factorization.

121220102010110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890145.

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

Adding to 121220102010110 its reverse (11010201022121), we get a palindrome (132230303032231).

The spelling of 121220102010110 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred two million, ten thousand, one hundred ten".