1112120121001 has 2 divisors, whose sum is σ = 1112120121002. Its totient is φ = 1112120121000.

The previous prime is 1112120120953. The next prime is 1112120121011. The reversal of 1112120121001 is 1001210212111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 820698293776 + 291421827225 = 905924^2 + 539835^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112120121001 - 2⁷ = 1112120120873 is a prime.

It is a super-2 number, since 2×1112120121001² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1112120121011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556060060500 + 556060060501.

It is an arithmetic number, because the mean of its divisors is an integer number (556060060501).

Almost surely, 2^{1112120121001} is an apocalyptic number.

It is an amenable number.

1112120121001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112120121001 is an equidigital number, since it uses as much as digits as its factorization.

1112120121001 is an evil number, because the sum of its binary digits is even.

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

Adding to 1112120121001 its reverse (1001210212111), we get a palindrome (2113330333112).

The spelling of 1112120121001 in words is "one trillion, one hundred twelve billion, one hundred twenty million, one hundred twenty-one thousand, one".