20121110110201 has 4 divisors (see below), whose sum is σ = 20770178178304. Its totient is φ = 19472042042100.

The previous prime is 20121110110183. The next prime is 20121110110259. The reversal of 20121110110201 is 10201101112102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20121110110201 - 2¹⁵ = 20121110077433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121110110501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324534034005 + ... + 324534034066.

It is an arithmetic number, because the mean of its divisors is an integer number (5192544544576).

Almost surely, 2^{20121110110201} is an apocalyptic number.

It is an amenable number.

20121110110201 is a deficient number, since it is larger than the sum of its proper divisors (649068068103).

20121110110201 is an equidigital number, since it uses as much as digits as its factorization.

20121110110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649068068102.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20121110110201 its reverse (10201101112102), we get a palindrome (30322211222303).

The spelling of 20121110110201 in words is "twenty trillion, one hundred twenty-one billion, one hundred ten million, one hundred ten thousand, two hundred one".