12021010100000 has 144 divisors (see below), whose sum is σ = 32270251571712. Its totient is φ = 4371276000000.

The previous prime is 12021010099997. The next prime is 12021010100003. The reversal of 12021010100000 is 101012021.

12021010100000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12021010099997) and next prime (12021010100003).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is not an unprimeable number, because it can be changed into a prime (12021010100003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4364096 + ... + 6564095.

It is an arithmetic number, because the mean of its divisors is an integer number (224098969248).

Almost surely, 2^{12021010100000} is an apocalyptic number.

12021010100000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021010100000 is an abundant number, since it is smaller than the sum of its proper divisors (20249241471712).

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

12021010100000 is an equidigital number, since it uses as much as digits as its factorization.

12021010100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10928237 (or 10928209 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12021010100000 its reverse (101012021), we get a palindrome (12021111112021).

The spelling of 12021010100000 in words is "twelve trillion, twenty-one billion, ten million, one hundred thousand".