1151122444 has 24 divisors (see below), whose sum is σ = 2046794288. Its totient is φ = 566343360.

The previous prime is 1151122439. The next prime is 1151122447. The reversal of 1151122444 is 4442211511.

It is not an unprimeable number, because it can be changed into a prime (1151122447) 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 7 ways as a sum of consecutive naturals, for example, 323314 + ... + 326854.

Almost surely, 2^1151122444 is an apocalyptic number.

It is an amenable number.

1151122444 is a deficient number, since it is larger than the sum of its proper divisors (895671844).

1151122444 is a wasteful number, since it uses less digits than its factorization.

1151122444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4825 (or 4823 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 1151122444 is about 33928.1954132547. The cubic root of 1151122444 is about 1048.0303040302.

Adding to 1151122444 its reverse (4442211511), we get a palindrome (5593333955).

The spelling of 1151122444 in words is "one billion, one hundred fifty-one million, one hundred twenty-two thousand, four hundred forty-four".