1120212100121 has 8 divisors (see below), whose sum is σ = 1131311451240. Its totient is φ = 1109133555712.

The previous prime is 1120212100109. The next prime is 1120212100151. The reversal of 1120212100121 is 1210012120211.

It can be written as a sum of positive squares in 4 ways, for example, as 73552152025 + 1046659948096 = 271205^2 + 1023064^2 .

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 1120212100121 - 2²⁶ = 1120144991257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120212100096 and 1120212100105.

It is not an unprimeable number, because it can be changed into a prime (1120212100151) 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, 5093456 + ... + 5308833.

It is an arithmetic number, because the mean of its divisors is an integer number (141413931405).

Almost surely, 2^{1120212100121} is an apocalyptic number.

It is an amenable number.

1120212100121 is a deficient number, since it is larger than the sum of its proper divisors (11099351119).

1120212100121 is a wasteful number, since it uses less digits than its factorization.

1120212100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10403355.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1120212100121 its reverse (1210012120211), we get a palindrome (2330224220332).

The spelling of 1120212100121 in words is "one trillion, one hundred twenty billion, two hundred twelve million, one hundred thousand, one hundred twenty-one".