12020021101000 has 64 divisors (see below), whose sum is σ = 30683835711360. Its totient is φ = 4370916760000.

The previous prime is 12020021100953. The next prime is 12020021101019. The reversal of 12020021101000 is 10112002021.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 546353596 + ... + 546375595.

It is an arithmetic number, because the mean of its divisors is an integer number (479434932990).

Almost surely, 2^{12020021101000} is an apocalyptic number.

12020021101000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020021101000 is an abundant number, since it is smaller than the sum of its proper divisors (18663814610360).

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

12020021101000 is a wasteful number, since it uses less digits than its factorization.

12020021101000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092729223 (or 1092729209 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12020021101000 its reverse (10112002021), we get a palindrome (12030133103021).

The spelling of 12020021101000 in words is "twelve trillion, twenty billion, twenty-one million, one hundred one thousand".