2022001220 has 24 divisors (see below), whose sum is σ = 4392624600. Its totient is φ = 780910592.

The previous prime is 2022001217. The next prime is 2022001229. The reversal of 2022001220 is 221002202.

It can be written as a sum of positive squares in 4 ways, for example, as 3655744 + 2018345476 = 1912^2 + 44926^2 .

It is not an unprimeable number, because it can be changed into a prime (2022001229) 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, 1742525 + ... + 1743684.

It is an arithmetic number, because the mean of its divisors is an integer number (183026025).

Almost surely, 2^2022001220 is an apocalyptic number.

2022001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2022001220 is an abundant number, since it is smaller than the sum of its proper divisors (2370623380).

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

2022001220 is a wasteful number, since it uses less digits than its factorization.

2022001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3486247 (or 3486245 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2022001220 is about 44966.6678774401. The cubic root of 2022001220 is about 1264.5241785576.

Adding to 2022001220 its reverse (221002202), we get a palindrome (2243003422).

The spelling of 2022001220 in words is "two billion, twenty-two million, one thousand, two hundred twenty".