1101221313 has 8 divisors (see below), whose sum is σ = 1490210208. Its totient is φ = 723189984.

The previous prime is 1101221311. The next prime is 1101221377. The reversal of 1101221313 is 3131221011.

It is a happy number.

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

It is not a de Polignac number, because 1101221313 - 2¹ = 1101221311 is a prime.

It is a super-3 number, since 3×1101221313³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1101221292 and 1101221301.

It is not an unprimeable number, because it can be changed into a prime (1101221311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2739156 + ... + 2739557.

It is an arithmetic number, because the mean of its divisors is an integer number (186276276).

Almost surely, 2^1101221313 is an apocalyptic number.

It is an amenable number.

1101221313 is a deficient number, since it is larger than the sum of its proper divisors (388988895).

1101221313 is an equidigital number, since it uses as much as digits as its factorization.

1101221313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5478783.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1101221313 is about 33184.6547819922. The cubic root of 1101221313 is about 1032.6620157048.

Adding to 1101221313 its reverse (3131221011), we get a palindrome (4232442324).

The spelling of 1101221313 in words is "one billion, one hundred one million, two hundred twenty-one thousand, three hundred thirteen".