20004004201 has 2 divisors, whose sum is σ = 20004004202. Its totient is φ = 20004004200.

The previous prime is 20004004183. The next prime is 20004004211. The reversal of 20004004201 is 10240040002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13144851801 + 6859152400 = 114651^2 + 82820^2 .

It is a cyclic number.

It is not a de Polignac number, because 20004004201 - 2¹³ = 20003996009 is a prime.

It is not a weakly prime, because it can be changed into another prime (20004004211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002002100 + 10002002101.

It is an arithmetic number, because the mean of its divisors is an integer number (10002002101).

Almost surely, 2^20004004201 is an apocalyptic number.

It is an amenable number.

20004004201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20004004201 is an equidigital number, since it uses as much as digits as its factorization.

20004004201 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20004004201 its reverse (10240040002), we get a palindrome (30244044203).

The spelling of 20004004201 in words is "twenty billion, four million, four thousand, two hundred one".