1151212200 has 48 divisors (see below), whose sum is σ = 3568759680. Its totient is φ = 306989760.

The previous prime is 1151212177. The next prime is 1151212207. The reversal of 1151212200 is 22121511.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1151212200.

It is not an unprimeable number, because it can be changed into a prime (1151212207) 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 11 ways as a sum of consecutive naturals, for example, 958744 + ... + 959943.

It is an arithmetic number, because the mean of its divisors is an integer number (74349160).

Almost surely, 2^1151212200 is an apocalyptic number.

1151212200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151212200 is an abundant number, since it is smaller than the sum of its proper divisors (2417547480).

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

1151212200 is a wasteful number, since it uses less digits than its factorization.

1151212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918706 (or 1918697 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1151212200 is about 33929.5181221308. The cubic root of 1151212200 is about 1048.0575425351.

Adding to 1151212200 its reverse (22121511), we get a palindrome (1173333711).

The spelling of 1151212200 in words is "one billion, one hundred fifty-one million, two hundred twelve thousand, two hundred".