1200227120 has 40 divisors (see below), whose sum is σ = 2793873264. Its totient is φ = 479515392.

The previous prime is 1200227113. The next prime is 1200227123. The reversal of 1200227120 is 217220021.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1200227123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61607 + ... + 78713.

Almost surely, 2^1200227120 is an apocalyptic number.

1200227120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200227120 is an abundant number, since it is smaller than the sum of its proper divisors (1593646144).

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

1200227120 is a wasteful number, since it uses less digits than its factorization.

1200227120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17997 (or 17991 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 1200227120 is about 34644.2941911074. The cubic root of 1200227120 is about 1062.7256069019.

Adding to 1200227120 its reverse (217220021), we get a palindrome (1417447141).

The spelling of 1200227120 in words is "one billion, two hundred million, two hundred twenty-seven thousand, one hundred twenty".