1200120122120 has 16 divisors (see below), whose sum is σ = 2700270274860. Its totient is φ = 480048048832.

The previous prime is 1200120122119. The next prime is 1200120122161. The reversal of 1200120122120 is 212210210021.

It can be written as a sum of positive squares in 2 ways, for example, as 1198573902436 + 1546219684 = 1094794^2 + 39322^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1200120122095 and 1200120122104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15001501487 + ... + 15001501566.

Almost surely, 2^{1200120122120} is an apocalyptic number.

1200120122120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200120122120 is an abundant number, since it is smaller than the sum of its proper divisors (1500150152740).

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

1200120122120 is a wasteful number, since it uses less digits than its factorization.

1200120122120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30003003064 (or 30003003060 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1200120122120 its reverse (212210210021), we get a palindrome (1412330332141).

The spelling of 1200120122120 in words is "one trillion, two hundred billion, one hundred twenty million, one hundred twenty-two thousand, one hundred twenty".