201442244101 has 16 divisors (see below), whose sum is σ = 231032309760. Its totient is φ = 172056273840.

The previous prime is 201442244041. The next prime is 201442244123. The reversal of 201442244101 is 101442244102.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201442244101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201442224101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2562856 + ... + 2640286.

It is an arithmetic number, because the mean of its divisors is an integer number (14439519360).

Almost surely, 2^201442244101 is an apocalyptic number.

It is an amenable number.

201442244101 is a deficient number, since it is larger than the sum of its proper divisors (29590065659).

201442244101 is an equidigital number, since it uses as much as digits as its factorization.

201442244101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78744.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 201442244101 its reverse (101442244102), we get a palindrome (302884488203).

Subtracting from 201442244101 its reverse (101442244102), we obtain a palindrome (99999999999).

The spelling of 201442244101 in words is "two hundred one billion, four hundred forty-two million, two hundred forty-four thousand, one hundred one".