201110101221012 has 24 divisors (see below), whose sum is σ = 469822954624800. Its totient is φ = 66955835867616.

The previous prime is 201110101221011. The next prime is 201110101221041. The reversal of 201110101221012 is 210122101011102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201110101220982 and 201110101221000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201110101221011) 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, 10108057062 + ... + 10108076957.

It is an arithmetic number, because the mean of its divisors is an integer number (19575956442700).

Almost surely, 2^{201110101221012} is an apocalyptic number.

It is an amenable number.

201110101221012 is an abundant number, since it is smaller than the sum of its proper divisors (268712853403788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201110101221012 is a wasteful number, since it uses less digits than its factorization.

201110101221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20216134855 (or 20216134853 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201110101221012 its reverse (210122101011102), we get a palindrome (411232202232114).

The spelling of 201110101221012 in words is "two hundred one trillion, one hundred ten billion, one hundred one million, two hundred twenty-one thousand, twelve".