121132110 has 64 divisors (see below), whose sum is σ = 318193920. Its totient is φ = 29268480.

The previous prime is 121132079. The next prime is 121132127. The reversal of 121132110 is 11231121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195381 + ... + 195999.

It is an arithmetic number, because the mean of its divisors is an integer number (4971780).

Almost surely, 2^121132110 is an apocalyptic number.

121132110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121132110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159096960).

121132110 is an abundant number, since it is smaller than the sum of its proper divisors (197061810).

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

121132110 is a wasteful number, since it uses less digits than its factorization.

121132110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 121132110 is about 11006.0033618021. The cubic root of 121132110 is about 494.7886864594.

Adding to 121132110 its reverse (11231121), we get a palindrome (132363231).

It can be divided in two parts, 121 and 132110, that added together give a palindrome (132231).

The spelling of 121132110 in words is "one hundred twenty-one million, one hundred thirty-two thousand, one hundred ten".