2001121112110 has 16 divisors (see below), whose sum is σ = 3604240127232. Its totient is φ = 799954639200.

The previous prime is 2001121112099. The next prime is 2001121112191. The reversal of 2001121112110 is 112111211002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61708686 + ... + 61741105.

It is an arithmetic number, because the mean of its divisors is an integer number (225265007952).

Almost surely, 2^{2001121112110} is an apocalyptic number.

2001121112110 is a deficient number, since it is larger than the sum of its proper divisors (1603119015122).

2001121112110 is a wasteful number, since it uses less digits than its factorization.

2001121112110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123451419.

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

Adding to 2001121112110 its reverse (112111211002), we get a palindrome (2113232323112).

The spelling of 2001121112110 in words is "two trillion, one billion, one hundred twenty-one million, one hundred twelve thousand, one hundred ten".