1222135 has 8 divisors (see below), whose sum is σ = 1490976. Its totient is φ = 961440.

The previous prime is 1222129. The next prime is 1222157. The reversal of 1222135 is 5312221.

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

It is not a de Polignac number, because 1222135 - 2¹³ = 1213943 is a prime.

It is a super-2 number, since 2×1222135² = 2987227916450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1699 + ... + 2308.

It is an arithmetic number, because the mean of its divisors is an integer number (186372).

2^1222135 is an apocalyptic number.

1222135 is a deficient number, since it is larger than the sum of its proper divisors (268841).

1222135 is an equidigital number, since it uses as much as digits as its factorization.

1222135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073.

The product of its digits is 120, while the sum is 16.

The square root of 1222135 is about 1105.5021483471. The cubic root of 1222135 is about 106.9152675914.

Adding to 1222135 its reverse (5312221), we get a palindrome (6534356).

It can be divided in two parts, 122213 and 5, that multiplied together give a triangular number (611065 = T₁₁₀₅).

The spelling of 1222135 in words is "one million, two hundred twenty-two thousand, one hundred thirty-five".