1122401144 has 8 divisors (see below), whose sum is σ = 2104502160. Its totient is φ = 561200568.

The previous prime is 1122401141. The next prime is 1122401153. The reversal of 1122401144 is 4411042211.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122401141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70150064 + ... + 70150079.

It is an arithmetic number, because the mean of its divisors is an integer number (263062770).

Almost surely, 2^1122401144 is an apocalyptic number.

It is an amenable number.

1122401144 is a deficient number, since it is larger than the sum of its proper divisors (982101016).

1122401144 is a wasteful number, since it uses less digits than its factorization.

1122401144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140300149 (or 140300145 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1122401144 is about 33502.2558046469. The cubic root of 1122401144 is about 1039.2404291052.

Adding to 1122401144 its reverse (4411042211), we get a palindrome (5533443355).

The spelling of 1122401144 in words is "one billion, one hundred twenty-two million, four hundred one thousand, one hundred forty-four".