121110103100 has 72 divisors (see below), whose sum is σ = 304583505408. Its totient is φ = 40938609600.

The previous prime is 121110103099. The next prime is 121110103129. The reversal of 121110103100 is 1301011121.

It is a happy number.

It is a super-2 number, since 2×121110103100² (a number of 23 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 1168712 + ... + 1268111.

It is an arithmetic number, because the mean of its divisors is an integer number (4230326464).

Almost surely, 2^121110103100 is an apocalyptic number.

121110103100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121110103100 is an abundant number, since it is smaller than the sum of its proper divisors (183473402308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121110103100 is a wasteful number, since it uses less digits than its factorization.

121110103100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436915 (or 2436908 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 121110103100 its reverse (1301011121), we get a palindrome (122411114221).

The spelling of 121110103100 in words is "one hundred twenty-one billion, one hundred ten million, one hundred three thousand, one hundred".