1217201 has 4 divisors (see below), whose sum is σ = 1245552. Its totient is φ = 1188852.

The previous prime is 1217191. The next prime is 1217207. The reversal of 1217201 is 1027121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1027121 = 19 ⋅54059.

It is a cyclic number.

It is not a de Polignac number, because 1217201 - 2¹⁰ = 1216177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1217207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14111 + ... + 14196.

It is an arithmetic number, because the mean of its divisors is an integer number (311388).

2^1217201 is an apocalyptic number.

It is an amenable number.

1217201 is a deficient number, since it is larger than the sum of its proper divisors (28351).

1217201 is an equidigital number, since it uses as much as digits as its factorization.

1217201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28350.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1217201 is about 1103.2683263830. The cubic root of 1217201 is about 106.7711941932.

The spelling of 1217201 in words is "one million, two hundred seventeen thousand, two hundred one".