1212122 has 8 divisors (see below), whose sum is σ = 1824672.
Its totient is φ = 603900.
The previous prime is 1212121. The next prime is 1212149. The reversal of 1212122 is 2212121.
Adding to 1212122 its reverse (2212121), we get a palindrome (3424243).
Subtracting 1212122 from its reverse (2212121), we obtain a palindrome (999999).
It can be divided in two parts, 12121 and 22, that multiplied together give a palindrome (266662).
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1212121) 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 3 ways as a sum of consecutive naturals, for example, 254 + ... + 1577.
It is an arithmetic number, because the mean of its divisors is an integer number (228084).
21212122 is an apocalyptic number.
1212122 is a deficient number, since it is larger than the sum of its proper divisors (612550).
1212122 is a wasteful number, since it uses less digits than its factorization.
1212122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2164.
The product of its digits is 16, while the sum is 11.
The square root of 1212122 is about 1100.9641229395.
The cubic root of 1212122 is about 106.6224795277.
The spelling of 1212122 in words is "one million, two hundred twelve thousand, one hundred twenty-two".