12021020101120 has 80 divisors (see below), whose sum is σ = 30339235887840. Its totient is φ = 4555333914624.

The previous prime is 12021020101091. The next prime is 12021020101133. The reversal of 12021020101120 is 2110102012021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 12021020101120.

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, 123522702 + ... + 123619981.

It is an arithmetic number, because the mean of its divisors is an integer number (379240448598).

Almost surely, 2^{12021020101120} is an apocalyptic number.

12021020101120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021020101120 is an abundant number, since it is smaller than the sum of its proper divisors (18318215786720).

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

12021020101120 is an equidigital number, since it uses as much as digits as its factorization.

12021020101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247142725 (or 247142709 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12021020101120 its reverse (2110102012021), we get a palindrome (14131122113141).

The spelling of 12021020101120 in words is "twelve trillion, twenty-one billion, twenty million, one hundred one thousand, one hundred twenty".