1150100221 has 4 divisors (see below), whose sum is σ = 1158879744. Its totient is φ = 1141320700.

The previous prime is 1150100219. The next prime is 1150100227. The reversal of 1150100221 is 1220010511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1150100221 - 2¹ = 1150100219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150100227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4389565 + ... + 4389826.

It is an arithmetic number, because the mean of its divisors is an integer number (289719936).

Almost surely, 2^1150100221 is an apocalyptic number.

It is an amenable number.

1150100221 is a deficient number, since it is larger than the sum of its proper divisors (8779523).

1150100221 is an equidigital number, since it uses as much as digits as its factorization.

1150100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8779522.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1150100221 is about 33913.1275614621. The cubic root of 1150100221 is about 1047.7199872136.

Adding to 1150100221 its reverse (1220010511), we get a palindrome (2370110732).

The spelling of 1150100221 in words is "one billion, one hundred fifty million, one hundred thousand, two hundred twenty-one".