1122101 has 4 divisors (see below), whose sum is σ = 1170912.
Its totient is φ = 1073292.
The previous prime is 1122091. The next prime is 1122103. The reversal of 1122101 is 1012211.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1012211 = 541 ⋅1871.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1122101 is a prime.
It is a super-2 number, since 2×11221012 = 2518221308402, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1122103) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24371 + ... + 24416.
It is an arithmetic number, because the mean of its divisors is an integer number (292728).
21122101 is an apocalyptic number.
It is an amenable number.
1122101 is a deficient number, since it is larger than the sum of its proper divisors (48811).
1122101 is an equidigital number, since it uses as much as digits as its factorization.
1122101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48810.
The product of its (nonzero) digits is 4, while the sum is 8.
The square root of 1122101 is about 1059.2926885427.
The cubic root of 1122101 is about 103.9147785583.
Adding to 1122101 its reverse (1012211), we get a palindrome (2134312).
It can be divided in two parts, 112210 and 1, that added together give a palindrome (112211).
The spelling of 1122101 in words is "one million, one hundred twenty-two thousand, one hundred one".