200011001100221 has 4 divisors (see below), whose sum is σ = 200011049838012. Its totient is φ = 200010952362432.

The previous prime is 200011001100149. The next prime is 200011001100271. The reversal of 200011001100221 is 122001100110002.

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 148015205822500 + 51995795277721 = 12166150^2 + 7210811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200011001100221 is a prime.

It is a super-2 number, since 2×200011001100221² (a number of 29 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 (200011001100271) 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, 17583356 + ... + 26630741.

It is an arithmetic number, because the mean of its divisors is an integer number (50002762459503).

Almost surely, 2^{200011001100221} is an apocalyptic number.

It is an amenable number.

200011001100221 is a deficient number, since it is larger than the sum of its proper divisors (48737791).

200011001100221 is an equidigital number, since it uses as much as digits as its factorization.

200011001100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48737790.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 200011001100221 its reverse (122001100110002), we get a palindrome (322012101210223).

The spelling of 200011001100221 in words is "two hundred trillion, eleven billion, one million, one hundred thousand, two hundred twenty-one".