12101210020 has 12 divisors (see below), whose sum is σ = 25412541084. Its totient is φ = 4840484000.

The previous prime is 12101209997. The next prime is 12101210021. The reversal of 12101210020 is 2001210121.

12101210020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6230892096 + 5870317924 = 78936^2 + 76618^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12101209979 and 12101210006.

It is not an unprimeable number, because it can be changed into a prime (12101210021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 302530231 + ... + 302530270.

It is an arithmetic number, because the mean of its divisors is an integer number (2117711757).

Almost surely, 2^12101210020 is an apocalyptic number.

12101210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101210020 is an abundant number, since it is smaller than the sum of its proper divisors (13311331064).

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

12101210020 is a wasteful number, since it uses less digits than its factorization.

12101210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605060510 (or 605060508 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12101210020 its reverse (2001210121), we get a palindrome (14102420141).

The spelling of 12101210020 in words is "twelve billion, one hundred one million, two hundred ten thousand, twenty".