2021220010208 has 24 divisors (see below), whose sum is σ = 4547745023472. Its totient is φ = 866237147136.

The previous prime is 2021220010207. The next prime is 2021220010211. The reversal of 2021220010208 is 8020100221202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021220010208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021220010207) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4511651585 + ... + 4511652032.

It is an arithmetic number, because the mean of its divisors is an integer number (189489375978).

Almost surely, 2^{2021220010208} is an apocalyptic number.

2021220010208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2021220010208 is an abundant number, since it is smaller than the sum of its proper divisors (2526525013264).

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

2021220010208 is an equidigital number, since it uses as much as digits as its factorization.

2021220010208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9023303634 (or 9023303626 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The spelling of 2021220010208 in words is "two trillion, twenty-one billion, two hundred twenty million, ten thousand, two hundred eight".