2021020222 has 16 divisors (see below), whose sum is σ = 3269533680. Its totient is φ = 931404672.

The previous prime is 2021020217. The next prime is 2021020223. The reversal of 2021020222 is 2220201202.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021020223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39147 + ... + 74662.

It is an arithmetic number, because the mean of its divisors is an integer number (204345855).

Almost surely, 2^2021020222 is an apocalyptic number.

2021020222 is a deficient number, since it is larger than the sum of its proper divisors (1248513458).

2021020222 is a wasteful number, since it uses less digits than its factorization.

2021020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114507.

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

The square root of 2021020222 is about 44955.7584965486. The cubic root of 2021020222 is about 1264.3196458161.

Adding to 2021020222 its reverse (2220201202), we get a palindrome (4241221424).

The spelling of 2021020222 in words is "two billion, twenty-one million, twenty thousand, two hundred twenty-two".