12071120 has 20 divisors (see below), whose sum is σ = 28065540. Its totient is φ = 4828416.

The previous prime is 12071117. The next prime is 12071123. The reversal of 12071120 is 2117021.

It is an interprime number because it is at equal distance from previous prime (12071117) and next prime (12071123).

It can be written as a sum of positive squares in 2 ways, for example, as 3474496 + 8596624 = 1864^2 + 2932^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 12071095 and 12071104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12071123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75365 + ... + 75524.

It is an arithmetic number, because the mean of its divisors is an integer number (1403277).

Almost surely, 2^12071120 is an apocalyptic number.

12071120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12071120 is an abundant number, since it is smaller than the sum of its proper divisors (15994420).

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

12071120 is a wasteful number, since it uses less digits than its factorization.

12071120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150902 (or 150896 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 12071120 is about 3474.3517380945. The cubic root of 12071120 is about 229.3942472347.

Adding to 12071120 its reverse (2117021), we get a palindrome (14188141).

The spelling of 12071120 in words is "twelve million, seventy-one thousand, one hundred twenty".