1013221335 has 32 divisors (see below), whose sum is σ = 1961736192. Its totient is φ = 435939840.

The previous prime is 1013221331. The next prime is 1013221409. The reversal of 1013221335 is 5331223101.

It is not a de Polignac number, because 1013221335 - 2² = 1013221331 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013221331) 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 31 ways as a sum of consecutive naturals, for example, 282031 + ... + 285600.

It is an arithmetic number, because the mean of its divisors is an integer number (61304256).

Almost surely, 2^1013221335 is an apocalyptic number.

1013221335 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1013221335 is a deficient number, since it is larger than the sum of its proper divisors (948514857).

1013221335 is a wasteful number, since it uses less digits than its factorization.

1013221335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567663.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1013221335 is about 31831.1378213221. The cubic root of 1013221335 is about 1004.3878304509.

Adding to 1013221335 its reverse (5331223101), we get a palindrome (6344444436).

The spelling of 1013221335 in words is "one billion, thirteen million, two hundred twenty-one thousand, three hundred thirty-five".