2022021221020 has 48 divisors (see below), whose sum is σ = 4255293430080. Its totient is φ = 807085430784.

The previous prime is 2022021220979. The next prime is 2022021221027. The reversal of 2022021221020 is 201221202202.

It is a junction number, because it is equal to n+sod(n) for n = 2022021220985 and 2022021221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022021221027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80684332 + ... + 80709388.

It is an arithmetic number, because the mean of its divisors is an integer number (88651946460).

Almost surely, 2^{2022021221020} is an apocalyptic number.

2022021221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2022021221020 is an abundant number, since it is smaller than the sum of its proper divisors (2233272209060).

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

2022021221020 is a wasteful number, since it uses less digits than its factorization.

2022021221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33502 (or 33500 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2022021221020 its reverse (201221202202), we get a palindrome (2223242423222).

The spelling of 2022021221020 in words is "two trillion, twenty-two billion, twenty-one million, two hundred twenty-one thousand, twenty".