2020121221000 has 64 divisors (see below), whose sum is σ = 4797637303680. Its totient is φ = 795988036800.

The previous prime is 2020121220979. The next prime is 2020121221039. The reversal of 2020121221000 is 1221210202.

It is a happy 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, 15008532 + ... + 15142531.

It is an arithmetic number, because the mean of its divisors is an integer number (74963082870).

Almost surely, 2^{2020121221000} is an apocalyptic number.

2020121221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020121221000 is an abundant number, since it is smaller than the sum of its proper divisors (2777516082680).

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

2020121221000 is a wasteful number, since it uses less digits than its factorization.

2020121221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30151151 (or 30151137 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2020121221000 its reverse (1221210202), we get a palindrome (2021342431202).

The spelling of 2020121221000 in words is "two trillion, twenty billion, one hundred twenty-one million, two hundred twenty-one thousand".