1218101 has 8 divisors (see below), whose sum is σ = 1307520. Its totient is φ = 1130688.

The previous prime is 1218089. The next prime is 1218121. The reversal of 1218101 is 1018121.

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

It is a cyclic number.

It is not a de Polignac number, because 1218101 - 2¹⁰ = 1217077 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218121) 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, 890 + ... + 1796.

It is an arithmetic number, because the mean of its divisors is an integer number (163440).

2^1218101 is an apocalyptic number.

It is an amenable number.

1218101 is a deficient number, since it is larger than the sum of its proper divisors (89419).

1218101 is an equidigital number, since it uses as much as digits as its factorization.

1218101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003.

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 1218101 is about 1103.6761300309. The cubic root of 1218101 is about 106.7975032965.

The spelling of 1218101 in words is "one million, two hundred eighteen thousand, one hundred one".