1224401133121 has 8 divisors (see below), whose sum is σ = 1226755835784. Its totient is φ = 1222048020480.

The previous prime is 1224401133113. The next prime is 1224401133191. The reversal of 1224401133121 is 1213311044221.

It can be written as a sum of positive squares in 4 ways, for example, as 205440095025 + 1018961038096 = 453255^2 + 1009436^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1224401133121 - 2³ = 1224401133113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224401133191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1149861 + ... + 1941901.

It is an arithmetic number, because the mean of its divisors is an integer number (153344479473).

Almost surely, 2^{1224401133121} is an apocalyptic number.

It is an amenable number.

1224401133121 is a deficient number, since it is larger than the sum of its proper divisors (2354702663).

1224401133121 is an equidigital number, since it uses as much as digits as its factorization.

1224401133121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795011.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1224401133121 its reverse (1213311044221), we get a palindrome (2437712177342).

The spelling of 1224401133121 in words is "one trillion, two hundred twenty-four billion, four hundred one million, one hundred thirty-three thousand, one hundred twenty-one".