1204411121 has 16 divisors (see below), whose sum is σ = 1375133760. Its totient is φ = 1047697920.

The previous prime is 1204411099. The next prime is 1204411129. The reversal of 1204411121 is 1211144021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1204411121 is a prime.

It is a super-2 number, since 2×1204411121² = 2901212296776953282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1204411121.

It is not an unprimeable number, because it can be changed into a prime (1204411129) 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, 32231 + ... + 58716.

It is an arithmetic number, because the mean of its divisors is an integer number (85945860).

Almost surely, 2^1204411121 is an apocalyptic number.

It is an amenable number.

1204411121 is a deficient number, since it is larger than the sum of its proper divisors (170722639).

1204411121 is a wasteful number, since it uses less digits than its factorization.

1204411121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91024.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1204411121 is about 34704.6267952848. The cubic root of 1204411121 is about 1063.9590646174.

Adding to 1204411121 its reverse (1211144021), we get a palindrome (2415555142).

The spelling of 1204411121 in words is "one billion, two hundred four million, four hundred eleven thousand, one hundred twenty-one".