12120202110 has 64 divisors (see below), whose sum is σ = 29941284672. Its totient is φ = 3137688576.

The previous prime is 12120202109. The next prime is 12120202111. The reversal of 12120202110 is 1120202121.

It is an interprime number because it is at equal distance from previous prime (12120202109) and next prime (12120202111).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120202111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 495324 + ... + 519216.

It is an arithmetic number, because the mean of its divisors is an integer number (467832573).

Almost surely, 2^12120202110 is an apocalyptic number.

12120202110 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 12120202110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14970642336).

12120202110 is an abundant number, since it is smaller than the sum of its proper divisors (17821082562).

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

12120202110 is a wasteful number, since it uses less digits than its factorization.

12120202110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24397.

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

Adding to 12120202110 its reverse (1120202121), we get a palindrome (13240404231).

The spelling of 12120202110 in words is "twelve billion, one hundred twenty million, two hundred two thousand, one hundred ten".