12121132110 has 16 divisors (see below), whose sum is σ = 29090717136. Its totient is φ = 3232301888.

The previous prime is 12121132097. The next prime is 12121132151. The reversal of 12121132110 is 1123112121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12121132110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202018839 + ... + 202018898.

It is an arithmetic number, because the mean of its divisors is an integer number (1818169821).

Almost surely, 2^12121132110 is an apocalyptic number.

12121132110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121132110 is an abundant number, since it is smaller than the sum of its proper divisors (16969585026).

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

12121132110 is a wasteful number, since it uses less digits than its factorization.

12121132110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404037747.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 12121132110 its reverse (1123112121), we get a palindrome (13244244231).

The spelling of 12121132110 in words is "twelve billion, one hundred twenty-one million, one hundred thirty-two thousand, one hundred ten".