1110120121001 has 8 divisors (see below), whose sum is σ = 1111986701640. Its totient is φ = 1108253722752.

The previous prime is 1110120120919. The next prime is 1110120121111. The reversal of 1110120121001 is 1001210210111.

It can be written as a sum of positive squares in 4 ways, for example, as 26961640000 + 1083158481001 = 164200^2 + 1040749^2 .

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 1110120121001 - 2²⁶ = 1110053012137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1110120121801) 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, 18230261 + ... + 18291053.

It is an arithmetic number, because the mean of its divisors is an integer number (138998337705).

Almost surely, 2^{1110120121001} is an apocalyptic number.

It is an amenable number.

1110120121001 is a deficient number, since it is larger than the sum of its proper divisors (1866580639).

1110120121001 is an equidigital number, since it uses as much as digits as its factorization.

1110120121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91195.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1110120121001 its reverse (1001210210111), we get a palindrome (2111330331112).

The spelling of 1110120121001 in words is "one trillion, one hundred ten billion, one hundred twenty million, one hundred twenty-one thousand, one".