1150500221 has 16 divisors (see below), whose sum is σ = 1286649840. Its totient is φ = 1021870080.

The previous prime is 1150500193. The next prime is 1150500287. The reversal of 1150500221 is 1220050511.

It can be written as a sum of positive squares in 8 ways, for example, as 196308121 + 954192100 = 14011^2 + 30890^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1150500221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1150500221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150520221) 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 in 15 ways as a sum of consecutive naturals, for example, 24125 + ... + 53693.

It is an arithmetic number, because the mean of its divisors is an integer number (80415615).

Almost surely, 2^1150500221 is an apocalyptic number.

It is an amenable number.

1150500221 is a deficient number, since it is larger than the sum of its proper divisors (136149619).

1150500221 is a wasteful number, since it uses less digits than its factorization.

1150500221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29696.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 1150500221 is about 33919.0244700522. The cubic root of 1150500221 is about 1047.8414373304.

Adding to 1150500221 its reverse (1220050511), we get a palindrome (2370550732).

The spelling of 1150500221 in words is "one billion, one hundred fifty million, five hundred thousand, two hundred twenty-one".