1224104121 has 6 divisors (see below), whose sum is σ = 1768150410. Its totient is φ = 816069408.

The previous prime is 1224104071. The next prime is 1224104129. The reversal of 1224104121 is 1214014221.

1224104121 is a `hidden beast` number, since 12 + 241 + 0 + 412 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 716097600 + 508006521 = 26760^2 + 22539^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1224104121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1224104094 and 1224104103.

It is not an unprimeable number, because it can be changed into a prime (1224104129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68005776 + ... + 68005793.

It is an arithmetic number, because the mean of its divisors is an integer number (294691735).

Almost surely, 2^1224104121 is an apocalyptic number.

It is an amenable number.

1224104121 is a deficient number, since it is larger than the sum of its proper divisors (544046289).

1224104121 is a wasteful number, since it uses less digits than its factorization.

1224104121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136011575 (or 136011572 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1224104121 is about 34987.1993877761. The cubic root of 1224104121 is about 1069.7265790445.

Adding to 1224104121 its reverse (1214014221), we get a palindrome (2438118342).

The spelling of 1224104121 in words is "one billion, two hundred twenty-four million, one hundred four thousand, one hundred twenty-one".