1100121121201 has 8 divisors (see below), whose sum is σ = 1101298961664. Its totient is φ = 1098943893600.

The previous prime is 1100121121163. The next prime is 1100121121213. The reversal of 1100121121201 is 1021211210011.

It is a happy number.

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 1100121121201 - 2²⁵ = 1100087566769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100121127201) 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, 3484876 + ... + 3787426.

It is an arithmetic number, because the mean of its divisors is an integer number (137662370208).

Almost surely, 2^{1100121121201} is an apocalyptic number.

It is an amenable number.

1100121121201 is a deficient number, since it is larger than the sum of its proper divisors (1177840463).

1100121121201 is a wasteful number, since it uses less digits than its factorization.

1100121121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306431.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1100121121201 its reverse (1021211210011), we get a palindrome (2121332331212).

The spelling of 1100121121201 in words is "one trillion, one hundred billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred one".