200201111221 has 8 divisors (see below), whose sum is σ = 204853947480. Its totient is φ = 195580699392.

The previous prime is 200201111179. The next prime is 200201111233. The reversal of 200201111221 is 122111102002.

It can be written as a sum of positive squares in 4 ways, for example, as 80024488996 + 120176622225 = 282886^2 + 346665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200201111221 - 2⁹ = 200201110709 is a prime.

It is a super-2 number, since 2×200201111221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200201111251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8093616 + ... + 8118313.

It is an arithmetic number, because the mean of its divisors is an integer number (25606743435).

Almost surely, 2^200201111221 is an apocalyptic number.

It is an amenable number.

200201111221 is a deficient number, since it is larger than the sum of its proper divisors (4652836259).

200201111221 is a wasteful number, since it uses less digits than its factorization.

200201111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16212215.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200201111221 its reverse (122111102002), we get a palindrome (322312213223).

The spelling of 200201111221 in words is "two hundred billion, two hundred one million, one hundred eleven thousand, two hundred twenty-one".