2001200110110 has 48 divisors (see below), whose sum is σ = 5204817489456. Its totient is φ = 533479290624.

The previous prime is 2001200110087. The next prime is 2001200110141. The reversal of 2001200110110 is 110110021002.

It is a happy number.

It is a super-2 number, since 2×2001200110110² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2001200110092 and 2001200110101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3348939 + ... + 3900998.

It is an arithmetic number, because the mean of its divisors is an integer number (108433697697).

Almost surely, 2^{2001200110110} is an apocalyptic number.

2001200110110 is an abundant number, since it is smaller than the sum of its proper divisors (3203617379346).

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

2001200110110 is a wasteful number, since it uses less digits than its factorization.

2001200110110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7253017 (or 7253014 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 2001200110110 its reverse (110110021002), we get a palindrome (2111310131112).

The spelling of 2001200110110 in words is "two trillion, one billion, two hundred million, one hundred ten thousand, one hundred ten".