1100122 has 4 divisors (see below), whose sum is σ = 1650186.
Its totient is φ = 550060.
The previous prime is 1100101. The next prime is 1100123. The reversal of 1100122 is 2210011.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 741321 + 358801 = 861^2 + 599^2
It is an Ulam number.
It is not an unprimeable number, because it can be changed into a prime (1100123) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275029 + ... + 275032.
21100122 is an apocalyptic number.
1100122 is a deficient number, since it is larger than the sum of its proper divisors (550064).
1100122 is an equidigital number, since it uses as much as digits as its factorization.
1100122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 550063.
The product of its (nonzero) digits is 4, while the sum is 7.
The square root of 1100122 is about 1048.8670077755.
The cubic root of 1100122 is about 103.2318277129.
Adding to 1100122 its reverse (2210011), we get a palindrome (3310133).
The spelling of 1100122 in words is "one million, one hundred thousand, one hundred twenty-two".