1121112212001 has 16 divisors (see below), whose sum is σ = 1495885745088. Its totient is φ = 746873600000.

The previous prime is 1121112211979. The next prime is 1121112212021. The reversal of 1121112212001 is 1002122111211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1121112212001 - 2⁶ = 1121112211937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121112212021) 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 15 ways as a sum of consecutive naturals, for example, 27190201 + ... + 27231401.

It is an arithmetic number, because the mean of its divisors is an integer number (93492859068).

Almost surely, 2^{1121112212001} is an apocalyptic number.

It is an amenable number.

1121112212001 is a deficient number, since it is larger than the sum of its proper divisors (374773533087).

1121112212001 is a wasteful number, since it uses less digits than its factorization.

1121112212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47472.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1121112212001 its reverse (1002122111211), we get a palindrome (2123234323212).

The spelling of 1121112212001 in words is "one trillion, one hundred twenty-one billion, one hundred twelve million, two hundred twelve thousand, one".