1112120211121 has 2 divisors, whose sum is σ = 1112120211122. Its totient is φ = 1112120211120.

The previous prime is 1112120211073. The next prime is 1112120211149. The reversal of 1112120211121 is 1211120212111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 835140099600 + 276980111521 = 913860^2 + 526289^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112120211121 - 2²¹ = 1112118113969 is a prime.

It is a super-2 number, since 2×1112120211121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1112120211095 and 1112120211104.

It is not a weakly prime, because it can be changed into another prime (1112120211721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556060105560 + 556060105561.

It is an arithmetic number, because the mean of its divisors is an integer number (556060105561).

Almost surely, 2^{1112120211121} is an apocalyptic number.

It is an amenable number.

1112120211121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112120211121 is an equidigital number, since it uses as much as digits as its factorization.

1112120211121 is an evil number, because the sum of its binary digits is even.

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

Adding to 1112120211121 its reverse (1211120212111), we get a palindrome (2323240423232).

The spelling of 1112120211121 in words is "one trillion, one hundred twelve billion, one hundred twenty million, two hundred eleven thousand, one hundred twenty-one".