1120020100121 has 4 divisors (see below), whose sum is σ = 1206175492452. Its totient is φ = 1033864707792.

The previous prime is 1120020100109. The next prime is 1120020100163. The reversal of 1120020100121 is 1210010200211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 399185139721 + 720834960400 = 631811^2 + 849020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120020100121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120020100621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43077696146 + ... + 43077696171.

It is an arithmetic number, because the mean of its divisors is an integer number (301543873113).

Almost surely, 2^{1120020100121} is an apocalyptic number.

It is an amenable number.

1120020100121 is a deficient number, since it is larger than the sum of its proper divisors (86155392331).

1120020100121 is an equidigital number, since it uses as much as digits as its factorization.

1120020100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86155392330.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1120020100121 its reverse (1210010200211), we get a palindrome (2330030300332).

The spelling of 1120020100121 in words is "one trillion, one hundred twenty billion, twenty million, one hundred thousand, one hundred twenty-one".