2022022021 has 4 divisors (see below), whose sum is σ = 2022112000. Its totient is φ = 2021932044.

The previous prime is 2022022001. The next prime is 2022022033. The reversal of 2022022021 is 1202202202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2022022021 - 2²¹ = 2019924869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2022021992 and 2022022010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022022001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20380 + ... + 66778.

It is an arithmetic number, because the mean of its divisors is an integer number (505528000).

Almost surely, 2^2022022021 is an apocalyptic number.

It is an amenable number.

2022022021 is a deficient number, since it is larger than the sum of its proper divisors (89979).

2022022021 is an equidigital number, since it uses as much as digits as its factorization.

2022022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89978.

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

The square root of 2022022021 is about 44966.8991703898. The cubic root of 2022022021 is about 1264.5285147365.

Adding to 2022022021 its reverse (1202202202), we get a palindrome (3224224223).

The spelling of 2022022021 in words is "two billion, twenty-two million, twenty-two thousand, twenty-one".