12020010100 has 72 divisors (see below), whose sum is σ = 30027453120. Its totient is φ = 4091032320.

The previous prime is 12020010053. The next prime is 12020010113. The reversal of 12020010100 is 101002021.

12020010100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33231 + ... + 158569.

It is an arithmetic number, because the mean of its divisors is an integer number (417047960).

Almost surely, 2^12020010100 is an apocalyptic number.

12020010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12020010100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15013726560).

12020010100 is an abundant number, since it is smaller than the sum of its proper divisors (18007443020).

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

12020010100 is a wasteful number, since it uses less digits than its factorization.

12020010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125497 (or 125490 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 12020010100 its reverse (101002021), we get a palindrome (12121012121).

The spelling of 12020010100 in words is "twelve billion, twenty million, ten thousand, one hundred".