1121201296 has 10 divisors (see below), whose sum is σ = 2172327542. Its totient is φ = 560600640.

The previous prime is 1121201281. The next prime is 1121201297. The reversal of 1121201296 is 6921021211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 902161296 + 219040000 = 30036^2 + 14800^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1121201296.

It is not an unprimeable number, because it can be changed into a prime (1121201297) 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 as a sum of consecutive naturals, namely, 35037525 + ... + 35037556.

Almost surely, 2^1121201296 is an apocalyptic number.

1121201296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1121201296 is a deficient number, since it is larger than the sum of its proper divisors (1051126246).

1121201296 is an equidigital number, since it uses as much as digits as its factorization.

1121201296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70075089 (or 70075083 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1121201296 is about 33484.3440431495. The cubic root of 1121201296 is about 1038.8699807011.

The spelling of 1121201296 in words is "one billion, one hundred twenty-one million, two hundred one thousand, two hundred ninety-six".