1100221023 has 8 divisors (see below), whose sum is σ = 1600321536. Its totient is φ = 666800600.

The previous prime is 1100221013. The next prime is 1100221063. The reversal of 1100221023 is 3201220011.

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

It is a cyclic number.

It is not a de Polignac number, because 1100221023 - 2⁵ = 1100220991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100221013) 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, 16669983 + ... + 16670048.

It is an arithmetic number, because the mean of its divisors is an integer number (200040192).

Almost surely, 2^1100221023 is an apocalyptic number.

1100221023 is a deficient number, since it is larger than the sum of its proper divisors (500100513).

1100221023 is a wasteful number, since it uses less digits than its factorization.

1100221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33340045.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1100221023 is about 33169.5797832894. The cubic root of 1100221023 is about 1032.3492495074.

Adding to 1100221023 its reverse (3201220011), we get a palindrome (4301441034).

It can be divided in two parts, 110022 and 1023, that multiplied together give a triangular number (112552506 = T₁₅₀₀₃).

The spelling of 1100221023 in words is "one billion, one hundred million, two hundred twenty-one thousand, twenty-three".