201100121111110 has 128 divisors (see below), whose sum is σ = 417011320535040. Its totient is φ = 69239107660800.

The previous prime is 201100121111051. The next prime is 201100121111159. The reversal of 201100121111110 is 11111121001102.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 161074365 + ... + 162318055.

It is an arithmetic number, because the mean of its divisors is an integer number (3257900941680).

Almost surely, 2^{201100121111110} is an apocalyptic number.

201100121111110 is an abundant number, since it is smaller than the sum of its proper divisors (215911199423930).

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

201100121111110 is a wasteful number, since it uses less digits than its factorization.

201100121111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245094.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 201100121111110 its reverse (11111121001102), we get a palindrome (212211242112212).

The spelling of 201100121111110 in words is "two hundred one trillion, one hundred billion, one hundred twenty-one million, one hundred eleven thousand, one hundred ten".