200221203131 has 4 divisors (see below), whose sum is σ = 200649942792. Its totient is φ = 199792463472.

The previous prime is 200221203041. The next prime is 200221203137. The reversal of 200221203131 is 131302122002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200221203131 is a prime.

It is a super-2 number, since 2×200221203131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200221203137) 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, 214369130 + ... + 214370063.

It is an arithmetic number, because the mean of its divisors is an integer number (50162485698).

Almost surely, 2^200221203131 is an apocalyptic number.

200221203131 is a deficient number, since it is larger than the sum of its proper divisors (428739661).

200221203131 is an equidigital number, since it uses as much as digits as its factorization.

200221203131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428739660.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 200221203131 its reverse (131302122002), we get a palindrome (331523325133).

The spelling of 200221203131 in words is "two hundred billion, two hundred twenty-one million, two hundred three thousand, one hundred thirty-one".