1121000404121 has 8 divisors (see below), whose sum is σ = 1248859867080. Its totient is φ = 999087892992.

The previous prime is 1121000404079. The next prime is 1121000404169. The reversal of 1121000404121 is 1214040001211.

It can be written as a sum of positive squares in 4 ways, for example, as 286691710096 + 834308694025 = 535436^2 + 913405^2 .

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 1121000404121 - 2²⁶ = 1120933295257 is a prime.

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 1121000404121.

It is not an unprimeable number, because it can be changed into a prime (1121000404171) 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, 1486737560 + ... + 1486738313.

It is an arithmetic number, because the mean of its divisors is an integer number (156107483385).

Almost surely, 2^{1121000404121} is an apocalyptic number.

It is an amenable number.

1121000404121 is a deficient number, since it is larger than the sum of its proper divisors (127859462959).

1121000404121 is a wasteful number, since it uses less digits than its factorization.

1121000404121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973475915.

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

Adding to 1121000404121 its reverse (1214040001211), we get a palindrome (2335040405332).

The spelling of 1121000404121 in words is "one trillion, one hundred twenty-one billion, four hundred four thousand, one hundred twenty-one".