1221119 has 2 divisors, whose sum is σ = 1221120. Its totient is φ = 1221118.

The previous prime is 1221113. The next prime is 1221131. The reversal of 1221119 is 9111221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1221119 - 2¹² = 1217023 is a prime.

It is a super-2 number, since 2×1221119² = 2982263224322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1221097 and 1221106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1221113) 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 as a sum of consecutive naturals, namely, 610559 + 610560.

It is an arithmetic number, because the mean of its divisors is an integer number (610560).

2^1221119 is an apocalyptic number.

1221119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221119 is an equidigital number, since it uses as much as digits as its factorization.

1221119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36, while the sum is 17.

The square root of 1221119 is about 1105.0425331181. The cubic root of 1221119 is about 106.8856320146.

The spelling of 1221119 in words is "one million, two hundred twenty-one thousand, one hundred nineteen".