1217122 has 16 divisors (see below), whose sum is σ = 1919232. Its totient is φ = 578160.

The previous prime is 1217119. The next prime is 1217131. The reversal of 1217122 is 2217121.

It is a junction number, because it is equal to n+sod(n) for n = 1217096 and 1217105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4008 + ... + 4300.

It is an arithmetic number, because the mean of its divisors is an integer number (119952).

2^1217122 is an apocalyptic number.

1217122 is a deficient number, since it is larger than the sum of its proper divisors (702110).

1217122 is a wasteful number, since it uses less digits than its factorization.

1217122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393.

The product of its digits is 56, while the sum is 16.

The square root of 1217122 is about 1103.2325230884. The cubic root of 1217122 is about 106.7688842196.

Subtracting 1217122 from its reverse (2217121), we obtain a palindrome (999999).

It can be divided in two parts, 12171 and 22, that multiplied together give a palindrome (267762).

The spelling of 1217122 in words is "one million, two hundred seventeen thousand, one hundred twenty-two".