201110112121001 has 8 divisors (see below), whose sum is σ = 212940484761600. Its totient is φ = 189279780152128.

The previous prime is 201110112120991. The next prime is 201110112121019. The reversal of 201110112121001 is 100121211011102.

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 201110112121001 - 2¹⁸ = 201110111858857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201110112121201) 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, 321560 + ... + 20058006.

It is an arithmetic number, because the mean of its divisors is an integer number (26617560595200).

Almost surely, 2^{201110112121001} is an apocalyptic number.

It is an amenable number.

201110112121001 is a deficient number, since it is larger than the sum of its proper divisors (11830372640599).

201110112121001 is a wasteful number, since it uses less digits than its factorization.

201110112121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20335863.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 201110112121001 its reverse (100121211011102), we get a palindrome (301231323132103).

The spelling of 201110112121001 in words is "two hundred one trillion, one hundred ten billion, one hundred twelve million, one hundred twenty-one thousand, one".