1150221255 has 8 divisors (see below), whose sum is σ = 1840354032. Its totient is φ = 613451328.

The previous prime is 1150221251. The next prime is 1150221269. The reversal of 1150221255 is 5521220511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1150221255 - 2² = 1150221251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150221251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38340694 + ... + 38340723.

It is an arithmetic number, because the mean of its divisors is an integer number (230044254).

Almost surely, 2^1150221255 is an apocalyptic number.

1150221255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1150221255 is a deficient number, since it is larger than the sum of its proper divisors (690132777).

1150221255 is an equidigital number, since it uses as much as digits as its factorization.

1150221255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76681425.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 1150221255 is about 33914.9119857328. The cubic root of 1150221255 is about 1047.7567391680.

Adding to 1150221255 its reverse (5521220511), we get a palindrome (6671441766).

The spelling of 1150221255 in words is "one billion, one hundred fifty million, two hundred twenty-one thousand, two hundred fifty-five".