121321266 has 32 divisors (see below), whose sum is σ = 267902208. Its totient is φ = 36319440.

The previous prime is 121321243. The next prime is 121321283. The reversal of 121321266 is 662123121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5596 + ... + 16551.

It is an arithmetic number, because the mean of its divisors is an integer number (8371944).

Almost surely, 2^121321266 is an apocalyptic number.

121321266 is an abundant number, since it is smaller than the sum of its proper divisors (146580942).

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

121321266 is a wasteful number, since it uses less digits than its factorization.

121321266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22246.

The product of its digits is 864, while the sum is 24.

The square root of 121321266 is about 11014.5933197735. The cubic root of 121321266 is about 495.0461012057.

Adding to 121321266 its reverse (662123121), we get a palindrome (783444387).

The spelling of 121321266 in words is "one hundred twenty-one million, three hundred twenty-one thousand, two hundred sixty-six".