20302201 has 4 divisors (see below), whose sum is σ = 20448400. Its totient is φ = 20156004.

The previous prime is 20302189. The next prime is 20302207. The reversal of 20302201 is 10220302.

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 20302201 - 2²¹ = 18205049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302207) 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, 72891 + ... + 73168.

It is an arithmetic number, because the mean of its divisors is an integer number (5112100).

Almost surely, 2^20302201 is an apocalyptic number.

It is an amenable number.

20302201 is a deficient number, since it is larger than the sum of its proper divisors (146199).

20302201 is a wasteful number, since it uses less digits than its factorization.

20302201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146198.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20302201 is about 4505.7963780002. The cubic root of 20302201 is about 272.8020991015.

Adding to 20302201 its reverse (10220302), we get a palindrome (30522503).

It can be divided in two parts, 20302 and 201, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 20302201 in words is "twenty million, three hundred two thousand, two hundred one".