1212127 has 8 divisors (see below), whose sum is σ = 1417856. Its totient is φ = 1014552.

The previous prime is 1212121. The next prime is 1212149. The reversal of 1212127 is 7212121.

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

It is not a de Polignac number, because 1212127 - 2³ = 1212119 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1212127 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1713 + ... + 2314.

It is an arithmetic number, because the mean of its divisors is an integer number (177232).

2^1212127 is an apocalyptic number.

1212127 is a deficient number, since it is larger than the sum of its proper divisors (205729).

1212127 is an equidigital number, since it uses as much as digits as its factorization.

1212127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4077.

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

The square root of 1212127 is about 1100.9663936742. The cubic root of 1212127 is about 106.6226261333.

Adding to 1212127 its reverse (7212121), we get a palindrome (8424248).

The spelling of 1212127 in words is "one million, two hundred twelve thousand, one hundred twenty-seven".