12220754 has 32 divisors (see below), whose sum is σ = 22861440. Its totient is φ = 4770432.

The previous prime is 12220721. The next prime is 12220757. The reversal of 12220754 is 45702221.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12220757) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14702 + ... + 15510.

It is an arithmetic number, because the mean of its divisors is an integer number (714420).

Almost surely, 2^12220754 is an apocalyptic number.

12220754 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12220754 is a deficient number, since it is larger than the sum of its proper divisors (10640686).

12220754 is a wasteful number, since it uses less digits than its factorization.

12220754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 12220754 is about 3495.8195033497. The cubic root of 12220754 is about 230.3382169611.

Adding to 12220754 its reverse (45702221), we get a palindrome (57922975).

The spelling of 12220754 in words is "twelve million, two hundred twenty thousand, seven hundred fifty-four".