121241223 has 24 divisors (see below), whose sum is σ = 188850480. Its totient is φ = 74701440.

The previous prime is 121241213. The next prime is 121241227. The reversal of 121241223 is 322142121.

It is a happy number.

It is not a de Polignac number, because 121241223 - 2⁹ = 121240711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121241196 and 121241205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121241227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1636 + ... + 15657.

It is an arithmetic number, because the mean of its divisors is an integer number (7868770).

Almost surely, 2^121241223 is an apocalyptic number.

121241223 is a deficient number, since it is larger than the sum of its proper divisors (67609257).

121241223 is a wasteful number, since it uses less digits than its factorization.

121241223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17359 (or 17356 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 121241223 is about 11010.9592225201. The cubic root of 121241223 is about 494.9372066046.

Adding to 121241223 its reverse (322142121), we get a palindrome (443383344).

The spelling of 121241223 in words is "one hundred twenty-one million, two hundred forty-one thousand, two hundred twenty-three".