1228200267 has 32 divisors (see below), whose sum is σ = 1899555840. Its totient is φ = 691384320.

The previous prime is 1228200263. The next prime is 1228200283. The reversal of 1228200267 is 7620028221.

It is not a de Polignac number, because 1228200267 - 2² = 1228200263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1228200263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 580203 + ... + 582315.

It is an arithmetic number, because the mean of its divisors is an integer number (59361120).

Almost surely, 2^1228200267 is an apocalyptic number.

1228200267 is a deficient number, since it is larger than the sum of its proper divisors (671355573).

1228200267 is a wasteful number, since it uses less digits than its factorization.

1228200267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 1228200267 is about 35045.6882797299. The cubic root of 1228200267 is about 1070.9184378549.

Adding to 1228200267 its reverse (7620028221), we get a palindrome (8848228488).

The spelling of 1228200267 in words is "one billion, two hundred twenty-eight million, two hundred thousand, two hundred sixty-seven".