12101011020120 has 64 divisors (see below), whose sum is σ = 39603308797440. Its totient is φ = 2933578428800.

The previous prime is 12101011020071. The next prime is 12101011020191. The reversal of 12101011020120 is 2102011010121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12101011020096 and 12101011020105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4583714976 + ... + 4583717615.

It is an arithmetic number, because the mean of its divisors is an integer number (618801699960).

Almost surely, 2^{12101011020120} is an apocalyptic number.

12101011020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101011020120 is an abundant number, since it is smaller than the sum of its proper divisors (27502297777320).

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

12101011020120 is a wasteful number, since it uses less digits than its factorization.

12101011020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9167432616 (or 9167432612 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12101011020120 its reverse (2102011010121), we get a palindrome (14203022030241).

Subtracting from 12101011020120 its reverse (2102011010121), we obtain a palindrome (9999000009999).

The spelling of 12101011020120 in words is "twelve trillion, one hundred one billion, eleven million, twenty thousand, one hundred twenty".