1112121121001 has 32 divisors (see below), whose sum is σ = 1319610777600. Its totient is φ = 925969968000.

The previous prime is 1112121120947. The next prime is 1112121121021. The reversal of 1112121121001 is 1001211212111.

It is not a de Polignac number, because 1112121121001 - 2²⁶ = 1112054012137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1112121121021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6334085 + ... + 6507293.

It is an arithmetic number, because the mean of its divisors is an integer number (41237836800).

Almost surely, 2^{1112121121001} is an apocalyptic number.

1112121121001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1112121121001 is a deficient number, since it is larger than the sum of its proper divisors (207489656599).

1112121121001 is a wasteful number, since it uses less digits than its factorization.

1112121121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174261.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1112121121001 its reverse (1001211212111), we get a palindrome (2113332333112).

The spelling of 1112121121001 in words is "one trillion, one hundred twelve billion, one hundred twenty-one million, one hundred twenty-one thousand, one".