20020200202201 has 4 divisors (see below), whose sum is σ = 20020620339252. Its totient is φ = 20019780065152.

The previous prime is 20020200202111. The next prime is 20020200202213. The reversal of 20020200202201 is 10220200202002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16305807422025 + 3714392780176 = 4038045^2 + 1927276^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020200202201 - 2³¹ = 20018052718553 is a prime.

It is a super-2 number, since 2×20020200202201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020200202231) 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, 209997040 + ... + 210092353.

It is an arithmetic number, because the mean of its divisors is an integer number (5005155084813).

Almost surely, 2^{20020200202201} is an apocalyptic number.

It is an amenable number.

20020200202201 is a deficient number, since it is larger than the sum of its proper divisors (420137051).

20020200202201 is an equidigital number, since it uses as much as digits as its factorization.

20020200202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420137050.

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

Adding to 20020200202201 its reverse (10220200202002), we get a palindrome (30240400404203).

The spelling of 20020200202201 in words is "twenty trillion, twenty billion, two hundred million, two hundred two thousand, two hundred one".