121266 has 12 divisors (see below), whose sum is σ = 262782. Its totient is φ = 40416.

The previous prime is 121259. The next prime is 121267. The reversal of 121266 is 662121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 103041 + 18225 = 321^2 + 135^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6737 = 121266 / (1 + 2 + 1 + 2 + 6 + 6).

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121267) by changing a digit.

121266 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3351 + ... + 3386.

2¹²¹²⁶⁶ is an apocalyptic number.

121266 is an abundant number, since it is smaller than the sum of its proper divisors (141516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121266 is a wasteful number, since it uses less digits than its factorization.

121266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6745 (or 6742 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 121266 is about 348.2326808328. The cubic root of 121266 is about 49.4970919626.

Adding to 121266 its reverse (662121), we get a palindrome (783387).

The spelling of 121266 in words is "one hundred twenty-one thousand, two hundred sixty-six".