2022641 has 2 divisors, whose sum is σ = 2022642. Its totient is φ = 2022640.

The previous prime is 2022619. The next prime is 2022649. The reversal of 2022641 is 1462202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 6241 = 1420^2 + 79^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2022641 is a prime.

It is a super-2 number, since 2×2022641² = 8182153229762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2022649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011320 + 1011321.

It is an arithmetic number, because the mean of its divisors is an integer number (1011321).

2^2022641 is an apocalyptic number.

It is an amenable number.

2022641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022641 is an equidigital number, since it uses as much as digits as its factorization.

2022641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2022641 is about 1422.1958374289. The cubic root of 2022641 is about 126.4657533566.

Adding to 2022641 its reverse (1462202), we get a palindrome (3484843).

The spelling of 2022641 in words is "two million, twenty-two thousand, six hundred forty-one".