2022221020 has 24 divisors (see below), whose sum is σ = 4248090000. Its totient is φ = 808616832.

The previous prime is 2022220909. The next prime is 2022221021. The reversal of 2022221020 is 201222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022221021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50656 + ... + 81304.

It is an arithmetic number, because the mean of its divisors is an integer number (177003750).

Almost surely, 2^2022221020 is an apocalyptic number.

2022221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2022221020 is an abundant number, since it is smaller than the sum of its proper divisors (2225868980).

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

2022221020 is a wasteful number, since it uses less digits than its factorization.

2022221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33957 (or 33955 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2022221020 is about 44969.1118435755. Note that the first 3 decimals coincide. The cubic root of 2022221020 is about 1264.5699965886.

Adding to 2022221020 its reverse (201222202), we get a palindrome (2223443222).

It can be divided in two parts, 202 and 2221020, that added together give a palindrome (2221222).

The spelling of 2022221020 in words is "two billion, twenty-two million, two hundred twenty-one thousand, twenty".