2021220110000 has 400 divisors, whose sum is σ = 6145913928000. Its totient is φ = 639668736000.

The previous prime is 2021220109969. The next prime is 2021220110027. The reversal of 2021220110000 is 110221202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (400).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 44567336 + ... + 44612664.

It is an arithmetic number, because the mean of its divisors is an integer number (15364784820).

Almost surely, 2^{2021220110000} is an apocalyptic number.

2021220110000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021220110000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3072956964000).

2021220110000 is an abundant number, since it is smaller than the sum of its proper divisors (4124693818000).

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

2021220110000 is an equidigital number, since it uses as much as digits as its factorization.

2021220110000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45391 (or 45356 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2021220110000 its reverse (110221202), we get a palindrome (2021330331202).

The spelling of 2021220110000 in words is "two trillion, twenty-one billion, two hundred twenty million, one hundred ten thousand".