12051270 has 192 divisors, whose sum is σ = 40974336. Its totient is φ = 2384640.

The previous prime is 12051239. The next prime is 12051293. The reversal of 12051270 is 7215021.

It is a super-2 number, since 2×12051270² = 290466217225800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 256387 + ... + 256433.

It is an arithmetic number, because the mean of its divisors is an integer number (213408).

Almost surely, 2^12051270 is an apocalyptic number.

12051270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12051270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20487168).

12051270 is an abundant number, since it is smaller than the sum of its proper divisors (28923066).

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

12051270 is a wasteful number, since it uses less digits than its factorization.

12051270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 12051270 is about 3471.4939147289. The cubic root of 12051270 is about 229.2684380297.

Adding to 12051270 its reverse (7215021), we get a palindrome (19266291).

It can be divided in two parts, 12051 and 270, that added together give a palindrome (12321).

The spelling of 12051270 in words is "twelve million, fifty-one thousand, two hundred seventy".