121223331 has 16 divisors (see below), whose sum is σ = 181372320. Its totient is φ = 80013600.

The previous prime is 121223279. The next prime is 121223351. The reversal of 121223331 is 133322121.

It is not a de Polignac number, because 121223331 - 2⁷ = 121223203 is a prime.

It is a super-2 number, since 2×121223331² = 29390191957471122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121223351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19500 + ... + 24953.

It is an arithmetic number, because the mean of its divisors is an integer number (11335770).

Almost surely, 2^121223331 is an apocalyptic number.

121223331 is a deficient number, since it is larger than the sum of its proper divisors (60148989).

121223331 is a wasteful number, since it uses less digits than its factorization.

121223331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44563 (or 44557 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 121223331 is about 11010.1467292675. The cubic root of 121223331 is about 494.9128588568.

Adding to 121223331 its reverse (133322121), we get a palindrome (254545452).

The spelling of 121223331 in words is "one hundred twenty-one million, two hundred twenty-three thousand, three hundred thirty-one".