201200021111 has 8 divisors (see below), whose sum is σ = 205748114880. Its totient is φ = 196663062528.

The previous prime is 201200021093. The next prime is 201200021119. The reversal of 201200021111 is 111120002102.

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 201200021111 - 2²² = 201195826807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201200021092 and 201200021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201200021119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2747246 + ... + 2819531.

It is an arithmetic number, because the mean of its divisors is an integer number (25718514360).

Almost surely, 2^201200021111 is an apocalyptic number.

201200021111 is a deficient number, since it is larger than the sum of its proper divisors (4548093769).

201200021111 is an equidigital number, since it uses as much as digits as its factorization.

201200021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5567593.

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

Adding to 201200021111 its reverse (111120002102), we get a palindrome (312320023213).

The spelling of 201200021111 in words is "two hundred one billion, two hundred million, twenty-one thousand, one hundred eleven".