1230122120 has 16 divisors (see below), whose sum is σ = 2767774860. Its totient is φ = 492048832.

The previous prime is 1230122039. The next prime is 1230122123. The reversal of 1230122120 is 212210321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1068374596 + 161747524 = 32686^2 + 12718^2 .

It is a super-2 number, since 2×1230122120² = 3026400860226588800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1230122095 and 1230122104.

It is not an unprimeable number, because it can be changed into a prime (1230122123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15376487 + ... + 15376566.

Almost surely, 2^1230122120 is an apocalyptic number.

1230122120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230122120 is an abundant number, since it is smaller than the sum of its proper divisors (1537652740).

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

1230122120 is a wasteful number, since it uses less digits than its factorization.

1230122120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30753064 (or 30753060 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1230122120 is about 35073.0968122292. The cubic root of 1230122120 is about 1071.4767277064.

Adding to 1230122120 its reverse (212210321), we get a palindrome (1442332441).

The spelling of 1230122120 in words is "one billion, two hundred thirty million, one hundred twenty-two thousand, one hundred twenty".