12101101212020 has 48 divisors (see below), whose sum is σ = 26910286436880. Its totient is φ = 4555178409984.

The previous prime is 12101101211993. The next prime is 12101101212077. The reversal of 12101101212020 is 2021210110121.

It can be written as a sum of positive squares in 8 ways, for example, as 2158002132196 + 9943099079824 = 1469014^2 + 3153268^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12101101211986 and 12101101212004.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 859952 + ... + 4994168.

It is an arithmetic number, because the mean of its divisors is an integer number (560630967435).

Almost surely, 2^{12101101212020} is an apocalyptic number.

12101101212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101101212020 is an abundant number, since it is smaller than the sum of its proper divisors (14809185224860).

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

12101101212020 is a wasteful number, since it uses less digits than its factorization.

12101101212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142852 (or 4142850 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12101101212020 its reverse (2021210110121), we get a palindrome (14122311322141).

The spelling of 12101101212020 in words is "twelve trillion, one hundred one billion, one hundred one million, two hundred twelve thousand, twenty".