122266 has 8 divisors (see below), whose sum is σ = 185364. Its totient is φ = 60480.

The previous prime is 122263. The next prime is 122267. The reversal of 122266 is 662221.

122266 = T₂₈₄ + T₂₈₅ + T₂₈₆.

It can be written as a sum of positive squares in 2 ways, for example, as 105625 + 16641 = 325^2 + 129^2 .

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

It is a pancake number, because a pancake can be divided into 122266 parts by 494 straight cuts.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (122263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45 + ... + 496.

2¹²²²⁶⁶ is an apocalyptic number.

122266 is the 286-th centered triangular number.

122266 is a deficient number, since it is larger than the sum of its proper divisors (63098).

122266 is a wasteful number, since it uses less digits than its factorization.

122266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656.

The product of its digits is 288, while the sum is 19.

The square root of 122266 is about 349.6655544946. The cubic root of 122266 is about 49.6327762032.

Adding to 122266 its reverse (662221), we get a palindrome (784487).

It can be divided in two parts, 12 and 2266, that added together give a triangular number (2278 = T₆₇).

The spelling of 122266 in words is "one hundred twenty-two thousand, two hundred sixty-six".