12100001010 has 128 divisors (see below), whose sum is σ = 30269030400. Its totient is φ = 3093513984.

The previous prime is 12100000987. The next prime is 12100001029. The reversal of 12100001010 is 1010000121.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a self number, because there is not a number n which added to its sum of digits gives 12100001010.

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 63 ways as a sum of consecutive naturals, for example, 32969847 + ... + 32970213.

It is an arithmetic number, because the mean of its divisors is an integer number (236476800).

Almost surely, 2^12100001010 is an apocalyptic number.

12100001010 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 12100001010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15134515200).

12100001010 is an abundant number, since it is smaller than the sum of its proper divisors (18169029390).

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

12100001010 is a wasteful number, since it uses less digits than its factorization.

12100001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 12100001010 its reverse (1010000121), we get a palindrome (13110001131).

The spelling of 12100001010 in words is "twelve billion, one hundred million, one thousand, ten".