200201111102021 has 4 divisors (see below), whose sum is σ = 200201142750252. Its totient is φ = 200201079453792.

The previous prime is 200201111101933. The next prime is 200201111102029. The reversal of 200201111102021 is 120201111102002.

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 32876175750625 + 167324935351396 = 5733775^2 + 12935414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200201111102021 is a prime.

It is a super-2 number, since 2×200201111102021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200201111101987 and 200201111102005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200201111102029) 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, 2715896 + ... + 20193521.

It is an arithmetic number, because the mean of its divisors is an integer number (50050285687563).

Almost surely, 2^{200201111102021} is an apocalyptic number.

It is an amenable number.

200201111102021 is a deficient number, since it is larger than the sum of its proper divisors (31648231).

200201111102021 is an equidigital number, since it uses as much as digits as its factorization.

200201111102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31648230.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 200201111102021 its reverse (120201111102002), we get a palindrome (320402222204023).

The spelling of 200201111102021 in words is "two hundred trillion, two hundred one billion, one hundred eleven million, one hundred two thousand, twenty-one".