121001100110 has 16 divisors (see below), whose sum is σ = 237602160432. Its totient is φ = 44000400000.

The previous prime is 121001100109. The next prime is 121001100113. The reversal of 121001100110 is 11001100121.

It is a happy number.

121001100110 is a modest number, since divided by 1100110 gives 1210 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001100113) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 550004891 + ... + 550005110.

It is an arithmetic number, because the mean of its divisors is an integer number (14850135027).

Almost surely, 2^121001100110 is an apocalyptic number.

121001100110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121001100110 is a deficient number, since it is larger than the sum of its proper divisors (116601060322).

121001100110 is a wasteful number, since it uses less digits than its factorization.

121001100110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100010019.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 121001100110 its reverse (11001100121), we get a palindrome (132002200231).

The spelling of 121001100110 in words is "one hundred twenty-one billion, one million, one hundred thousand, one hundred ten".