12122122110 has 64 divisors (see below), whose sum is σ = 33441541632. Its totient is φ = 2754746496.

The previous prime is 12122122081. The next prime is 12122122157. The reversal of 12122122110 is 1122122121.

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 12122122110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130504 + ... + 203163.

It is an arithmetic number, because the mean of its divisors is an integer number (522524088).

Almost surely, 2^12122122110 is an apocalyptic number.

12122122110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122122110 is an abundant number, since it is smaller than the sum of its proper divisors (21319419522).

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

12122122110 is a wasteful number, since it uses less digits than its factorization.

12122122110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333857.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12122122110 its reverse (1122122121), we get a palindrome (13244244231).

The spelling of 12122122110 in words is "twelve billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred ten".