201442211 has 8 divisors (see below), whose sum is σ = 210712320. Its totient is φ = 192214792.

The previous prime is 201442183. The next prime is 201442217. The reversal of 201442211 is 112244102.

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 201442211 - 2¹⁰ = 201441187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201442211.

It is not an unprimeable number, because it can be changed into a prime (201442217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815 + ... + 20088.

It is an arithmetic number, because the mean of its divisors is an integer number (26339040).

Almost surely, 2^201442211 is an apocalyptic number.

201442211 is a deficient number, since it is larger than the sum of its proper divisors (9270109).

201442211 is a wasteful number, since it uses less digits than its factorization.

201442211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21345.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 201442211 is about 14193.0338899053. The cubic root of 201442211 is about 586.2058658089.

Adding to 201442211 its reverse (112244102), we get a palindrome (313686313).

The spelling of 201442211 in words is "two hundred one million, four hundred forty-two thousand, two hundred eleven".