1015221241 has 4 divisors (see below), whose sum is σ = 1050228900. Its totient is φ = 980213584.

The previous prime is 1015221239. The next prime is 1015221253. The reversal of 1015221241 is 1421225101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 312759225 + 702462016 = 17685^2 + 26504^2 .

It is a cyclic number.

It is not a de Polignac number, because 1015221241 - 2¹ = 1015221239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1015221211) 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, 17503786 + ... + 17503843.

It is an arithmetic number, because the mean of its divisors is an integer number (262557225).

Almost surely, 2^1015221241 is an apocalyptic number.

It is an amenable number.

1015221241 is a deficient number, since it is larger than the sum of its proper divisors (35007659).

1015221241 is an equidigital number, since it uses as much as digits as its factorization.

1015221241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35007658.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1015221241 is about 31862.5366378762. The cubic root of 1015221241 is about 1005.0482195951.

Adding to 1015221241 its reverse (1421225101), we get a palindrome (2436446342).

The spelling of 1015221241 in words is "one billion, fifteen million, two hundred twenty-one thousand, two hundred forty-one".