12002122110 has 128 divisors (see below), whose sum is σ = 31824451584. Its totient is φ = 2872719360.

The previous prime is 12002122087. The next prime is 12002122159. The reversal of 12002122110 is 1122120021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13684992 + ... + 13685868.

It is an arithmetic number, because the mean of its divisors is an integer number (248628528).

Almost surely, 2^12002122110 is an apocalyptic number.

12002122110 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 12002122110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15912225792).

12002122110 is an abundant number, since it is smaller than the sum of its proper divisors (19822329474).

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

12002122110 is a wasteful number, since it uses less digits than its factorization.

12002122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12002122110 its reverse (1122120021), we get a palindrome (13124242131).

The spelling of 12002122110 in words is "twelve billion, two million, one hundred twenty-two thousand, one hundred ten".