1100342221 has 16 divisors (see below), whose sum is σ = 1273071168. Its totient is φ = 939923200.

The previous prime is 1100342219. The next prime is 1100342237. The reversal of 1100342221 is 1222430011.

It is not a de Polignac number, because 1100342221 - 2¹ = 1100342219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100342195 and 1100342204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100342281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117606 + ... + 126616.

It is an arithmetic number, because the mean of its divisors is an integer number (79566948).

Almost surely, 2^1100342221 is an apocalyptic number.

1100342221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1100342221 is a deficient number, since it is larger than the sum of its proper divisors (172728947).

1100342221 is a wasteful number, since it uses less digits than its factorization.

1100342221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9692.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1100342221 is about 33171.4066780413. The cubic root of 1100342221 is about 1032.3871552457.

Adding to 1100342221 its reverse (1222430011), we get a palindrome (2322772232).

The spelling of 1100342221 in words is "one billion, one hundred million, three hundred forty-two thousand, two hundred twenty-one".