2022521 has 4 divisors (see below), whose sum is σ = 2034000. Its totient is φ = 2011044.

The previous prime is 2022497. The next prime is 2022539. The reversal of 2022521 is 1252202.

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.

It is a cyclic number.

It is not a de Polignac number, because 2022521 - 2¹⁰ = 2021497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2022496 and 2022505.

It is not an unprimeable number, because it can be changed into a prime (2022421) 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, 5471 + ... + 5828.

It is an arithmetic number, because the mean of its divisors is an integer number (508500).

2^2022521 is an apocalyptic number.

It is an amenable number.

2022521 is a deficient number, since it is larger than the sum of its proper divisors (11479).

2022521 is a wasteful number, since it uses less digits than its factorization.

2022521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11478.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2022521 is about 1422.1536485204. The cubic root of 2022521 is about 126.4632523046.

Adding to 2022521 its reverse (1252202), we get a palindrome (3274723).

The spelling of 2022521 in words is "two million, twenty-two thousand, five hundred twenty-one".