1212201 has 9 divisors (see below), whose sum is σ = 1755741. Its totient is φ = 805932.

The previous prime is 1212199. The next prime is 1212221. The reversal of 1212201 is 1022121.

The square root of 1212201 is 1101.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 1212201 - 2¹ = 1212199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1212221) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3120 + ... + 3486.

2^1212201 is an apocalyptic number.

1212201 is the 1101-st square number.

1212201 is the 551-st centered octagonal number.

It is an amenable number.

1212201 is a deficient number, since it is larger than the sum of its proper divisors (543540).

1212201 is an frugal number, since it uses more digits than its factorization.

1212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The cubic root of 1212201 is about 106.6247958492.

Adding to 1212201 its reverse (1022121), we get a palindrome (2234322).

Multiplying 1212201 by its reverse (1022121), we get a square (1239016098321 = 1113111²).

The spelling of 1212201 in words is "one million, two hundred twelve thousand, two hundred one".