20202241 has 4 divisors (see below), whose sum is σ = 20898900. Its totient is φ = 19505584.

The previous prime is 20202229. The next prime is 20202251. The reversal of 20202241 is 14220202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14220202 = 2 ⋅7110101.

It can be written as a sum of positive squares in 2 ways, for example, as 7924225 + 12278016 = 2815^2 + 3504^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202241 - 2⁷ = 20202113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20202251) 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, 348286 + ... + 348343.

It is an arithmetic number, because the mean of its divisors is an integer number (5224725).

Almost surely, 2^20202241 is an apocalyptic number.

It is an amenable number.

20202241 is a deficient number, since it is larger than the sum of its proper divisors (696659).

20202241 is an equidigital number, since it uses as much as digits as its factorization.

20202241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696658.

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

The square root of 20202241 is about 4494.6903119125. The cubic root of 20202241 is about 272.3536391036.

Adding to 20202241 its reverse (14220202), we get a palindrome (34422443).

The spelling of 20202241 in words is "twenty million, two hundred two thousand, two hundred forty-one".