1213122 has 8 divisors (see below), whose sum is σ = 2426256. Its totient is φ = 404372.

The previous prime is 1213109. The next prime is 1213129. The reversal of 1213122 is 2213121.

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

1213122 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1213098 and 1213107.

It is not an unprimeable number, because it can be changed into a prime (1213129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101088 + ... + 101099.

It is an arithmetic number, because the mean of its divisors is an integer number (303282).

2^1213122 is an apocalyptic number.

1213122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213122 is a wasteful number, since it uses less digits than its factorization.

1213122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202192.

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

The square root of 1213122 is about 1101.4181767158. The cubic root of 1213122 is about 106.6517926309.

Adding to 1213122 its reverse (2213121), we get a palindrome (3426243).

Subtracting 1213122 from its reverse (2213121), we obtain a palindrome (999999).

It can be divided in two parts, 12 and 13122, that multiplied together give a cube (157464 = 54³).

The spelling of 1213122 in words is "one million, two hundred thirteen thousand, one hundred twenty-two".