1111002211121 has 8 divisors (see below), whose sum is σ = 1217031470688. Its totient is φ = 1005811128000.

The previous prime is 1111002211043. The next prime is 1111002211133. The reversal of 1111002211121 is 1211122001111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1111002211121 - 2³⁸ = 836124304177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111002211096 and 1111002211105.

It is not an unprimeable number, because it can be changed into a prime (1111002211181) 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 7 ways as a sum of consecutive naturals, for example, 209541335 + ... + 209546636.

It is an arithmetic number, because the mean of its divisors is an integer number (152128933836).

Almost surely, 2^{1111002211121} is an apocalyptic number.

1111002211121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111002211121 is a deficient number, since it is larger than the sum of its proper divisors (106029259567).

1111002211121 is a wasteful number, since it uses less digits than its factorization.

1111002211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419088223.

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

Adding to 1111002211121 its reverse (1211122001111), we get a palindrome (2322124212232).

The spelling of 1111002211121 in words is "one trillion, one hundred eleven billion, two million, two hundred eleven thousand, one hundred twenty-one".