1222122 has 16 divisors (see below), whose sum is σ = 2666592. Its totient is φ = 370320.

The previous prime is 1222097. The next prime is 1222129. The reversal of 1222122 is 2212221.

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

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1222098 and 1222107.

It is not an unprimeable number, because it can be changed into a prime (1222129) 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 7 ways as a sum of consecutive naturals, for example, 9193 + ... + 9324.

It is an arithmetic number, because the mean of its divisors is an integer number (166662).

2^1222122 is an apocalyptic number.

1222122 is an abundant number, since it is smaller than the sum of its proper divisors (1444470).

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

1222122 is a wasteful number, since it uses less digits than its factorization.

1222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18533.

The product of its digits is 32, while the sum is 12.

The square root of 1222122 is about 1105.4962686504. The cubic root of 1222122 is about 106.9148884998.

Adding to 1222122 its reverse (2212221), we get a palindrome (3434343).

Subtracting 1222122 from its reverse (2212221), we obtain a palindrome (990099).

It can be divided in two parts, 12221 and 22, that multiplied together give a palindrome (268862).

The spelling of 1222122 in words is "one million, two hundred twenty-two thousand, one hundred twenty-two".