1101345221 has 8 divisors (see below), whose sum is σ = 1171013760. Its totient is φ = 1032219328.

The previous prime is 1101345199. The next prime is 1101345257. The reversal of 1101345221 is 1225431011.

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

It is not a de Polignac number, because 1101345221 - 2¹⁰ = 1101344197 is a prime.

It is a super-2 number, since 2×1101345221² = 2425922591639077682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1101345193 and 1101345202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101345281) 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, 131471 + ... + 139596.

It is an arithmetic number, because the mean of its divisors is an integer number (146376720).

Almost surely, 2^1101345221 is an apocalyptic number.

It is an amenable number.

1101345221 is a deficient number, since it is larger than the sum of its proper divisors (69668539).

1101345221 is a wasteful number, since it uses less digits than its factorization.

1101345221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271323.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1101345221 is about 33186.5216767289. The cubic root of 1101345221 is about 1032.7007455177.

Adding to 1101345221 its reverse (1225431011), we get a palindrome (2326776232).

The spelling of 1101345221 in words is "one billion, one hundred one million, three hundred forty-five thousand, two hundred twenty-one".