12270000 has 100 divisors (see below), whose sum is σ = 39706040. Its totient is φ = 3264000.

The previous prime is 12269989. The next prime is 12270047. The reversal of 12270000 is 7221.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29796 + ... + 30204.

Almost surely, 2^12270000 is an apocalyptic number.

12270000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12270000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19853020).

12270000 is an abundant number, since it is smaller than the sum of its proper divisors (27436040).

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

12270000 is an equidigital number, since it uses as much as digits as its factorization.

12270000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 12.

The square root of 12270000 is about 3502.8559776274. The cubic root of 12270000 is about 230.6472004392.

Adding to 12270000 its reverse (7221), we get a palindrome (12277221).

It can be divided in two parts, 12 and 270000, that multiplied together give a square (3240000 = 1800²).

The spelling of 12270000 in words is "twelve million, two hundred seventy thousand".