1020200520201 has 4 divisors (see below), whose sum is σ = 1360267360272. Its totient is φ = 680133680132.

The previous prime is 1020200520191. The next prime is 1020200520203. The reversal of 1020200520201 is 1020250020201.

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 1020200520201 - 2¹¹ = 1020200518153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020200520203) 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, 170033420031 + ... + 170033420036.

It is an arithmetic number, because the mean of its divisors is an integer number (340066840068).

Almost surely, 2^{1020200520201} is an apocalyptic number.

It is an amenable number.

1020200520201 is a deficient number, since it is larger than the sum of its proper divisors (340066840071).

1020200520201 is an equidigital number, since it uses as much as digits as its factorization.

1020200520201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340066840070.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 1020200520201 its reverse (1020250020201), we get a palindrome (2040450540402).

The spelling of 1020200520201 in words is "one trillion, twenty billion, two hundred million, five hundred twenty thousand, two hundred one".