12228554 has 16 divisors (see below), whose sum is σ = 20176128. Its totient is φ = 5523312.

The previous prime is 12228553. The next prime is 12228563. The reversal of 12228554 is 45582221.

It is not an unprimeable number, because it can be changed into a prime (12228551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3782 + ... + 6225.

It is an arithmetic number, because the mean of its divisors is an integer number (1261008).

Almost surely, 2^12228554 is an apocalyptic number.

12228554 is a deficient number, since it is larger than the sum of its proper divisors (7947574).

12228554 is a wasteful number, since it uses less digits than its factorization.

12228554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10069.

The product of its digits is 6400, while the sum is 29.

The square root of 12228554 is about 3496.9349436328. The cubic root of 12228554 is about 230.3872116463.

The spelling of 12228554 in words is "twelve million, two hundred twenty-eight thousand, five hundred fifty-four".