12120121102020 has 24 divisors (see below), whose sum is σ = 33936339085824. Its totient is φ = 3232032293856.

The previous prime is 12120121102003. The next prime is 12120121102097. The reversal of 12120121102020 is 2020112102121.

12120121102020 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 (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101001009124 + ... + 101001009243.

It is an arithmetic number, because the mean of its divisors is an integer number (1414014128576).

Almost surely, 2^{12120121102020} is an apocalyptic number.

12120121102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120121102020 is an abundant number, since it is smaller than the sum of its proper divisors (21816217983804).

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

12120121102020 is a wasteful number, since it uses less digits than its factorization.

12120121102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202002018379 (or 202002018377 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12120121102020 its reverse (2020112102121), we get a palindrome (14140233204141).

The spelling of 12120121102020 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-one million, one hundred two thousand, twenty".