1111122001121 has 16 divisors (see below), whose sum is σ = 1283501376000. Its totient is φ = 950643482880.

The previous prime is 1111122001081. The next prime is 1111122001139. The reversal of 1111122001121 is 1211002211111.

It is a cyclic number.

It is not a de Polignac number, because 1111122001121 - 2⁶ = 1111122001057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111122001096 and 1111122001105.

It is not an unprimeable number, because it can be changed into a prime (1111122001181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3736880 + ... + 4023246.

It is an arithmetic number, because the mean of its divisors is an integer number (80218836000).

Almost surely, 2^{1111122001121} is an apocalyptic number.

1111122001121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111122001121 is a deficient number, since it is larger than the sum of its proper divisors (172379374879).

1111122001121 is a wasteful number, since it uses less digits than its factorization.

1111122001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307144.

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

Adding to 1111122001121 its reverse (1211002211111), we get a palindrome (2322124212232).

The spelling of 1111122001121 in words is "one trillion, one hundred eleven billion, one hundred twenty-two million, one thousand, one hundred twenty-one".