1200012001110 has 128 divisors (see below), whose sum is σ = 3511211276160. Its totient is φ = 289814174208.

The previous prime is 1200012001073. The next prime is 1200012001157. The reversal of 1200012001110 is 111002100021.

It is a happy number.

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 = 1200012001092 and 1200012001101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3039289 + ... + 3411348.

It is an arithmetic number, because the mean of its divisors is an integer number (27431338095).

Almost surely, 2^{1200012001110} is an apocalyptic number.

1200012001110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200012001110 is an abundant number, since it is smaller than the sum of its proper divisors (2311199275050).

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

1200012001110 is a wasteful number, since it uses less digits than its factorization.

1200012001110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6450719 (or 6450713 counting only the distinct ones).

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

Adding to 1200012001110 its reverse (111002100021), we get a palindrome (1311014101131).

The spelling of 1200012001110 in words is "one trillion, two hundred billion, twelve million, one thousand, one hundred ten".