2022921 has 8 divisors (see below), whose sum is σ = 2996960. Its totient is φ = 1348596.

The previous prime is 2022893. The next prime is 2022971. The reversal of 2022921 is 1292202.

It is not a de Polignac number, because 2022921 - 2¹³ = 2014729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2022894 and 2022903.

It is not an unprimeable number, because it can be changed into a prime (2022971) 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, 37435 + ... + 37488.

It is an arithmetic number, because the mean of its divisors is an integer number (374620).

2^2022921 is an apocalyptic number.

It is an amenable number.

2022921 is a deficient number, since it is larger than the sum of its proper divisors (974039).

2022921 is an equidigital number, since it uses as much as digits as its factorization.

2022921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74932 (or 74926 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2022921 is about 1422.2942733485. The cubic root of 2022921 is about 126.4715887597.

The spelling of 2022921 in words is "two million, twenty-two thousand, nine hundred twenty-one".