1101223355 has 4 divisors (see below), whose sum is σ = 1321468032. Its totient is φ = 880978680.

The previous prime is 1101223339. The next prime is 1101223373. The reversal of 1101223355 is 5533221011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5533221011 = 18919 ⋅292469.

It is not a de Polignac number, because 1101223355 - 2⁴ = 1101223339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1101223355.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110122331 + ... + 110122340.

It is an arithmetic number, because the mean of its divisors is an integer number (330367008).

Almost surely, 2^1101223355 is an apocalyptic number.

1101223355 is a deficient number, since it is larger than the sum of its proper divisors (220244677).

1101223355 is an equidigital number, since it uses as much as digits as its factorization.

1101223355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220244676.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1101223355 is about 33184.6855492108. The cubic root of 1101223355 is about 1032.6626539945.

Adding to 1101223355 its reverse (5533221011), we get a palindrome (6634444366).

The spelling of 1101223355 in words is "one billion, one hundred one million, two hundred twenty-three thousand, three hundred fifty-five".