21342112201 has 8 divisors (see below), whose sum is σ = 21619883520. Its totient is φ = 21064531488.

The previous prime is 21342112177. The next prime is 21342112237. The reversal of 21342112201 is 10221124312.

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 21342112201 - 2⁹ = 21342111689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21342112261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185085 + ... + 277381.

It is an arithmetic number, because the mean of its divisors is an integer number (2702485440).

Almost surely, 2^21342112201 is an apocalyptic number.

It is an amenable number.

21342112201 is a deficient number, since it is larger than the sum of its proper divisors (277771319).

21342112201 is an equidigital number, since it uses as much as digits as its factorization.

21342112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95303.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21342112201 its reverse (10221124312), we get a palindrome (31563236513).

The spelling of 21342112201 in words is "twenty-one billion, three hundred forty-two million, one hundred twelve thousand, two hundred one".