1200120100110 has 48 divisors (see below), whose sum is σ = 3192877671984. Its totient is φ = 312589420416.

The previous prime is 1200120100103. The next prime is 1200120100133. The reversal of 1200120100110 is 110010210021.

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 = 1200120100092 and 1200120100101.

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 23 ways as a sum of consecutive naturals, for example, 155050407 + ... + 155058146.

It is an arithmetic number, because the mean of its divisors is an integer number (66518284833).

Almost surely, 2^{1200120100110} is an apocalyptic number.

1200120100110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200120100110 is an abundant number, since it is smaller than the sum of its proper divisors (1992757571874).

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

1200120100110 is a wasteful number, since it uses less digits than its factorization.

1200120100110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310108609 (or 310108606 counting only the distinct ones).

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

Adding to 1200120100110 its reverse (110010210021), we get a palindrome (1310130310131).

The spelling of 1200120100110 in words is "one trillion, two hundred billion, one hundred twenty million, one hundred thousand, one hundred ten".