1111020211121 has 8 divisors (see below), whose sum is σ = 1112243565888. Its totient is φ = 1109797234000.

The previous prime is 1111020211111. The next prime is 1111020211163. The reversal of 1111020211121 is 1211120201111.

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 1111020211121 - 2¹⁸ = 1111019948977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111020211096 and 1111020211105.

It is not an unprimeable number, because it can be changed into a prime (1111020211111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6008711 + ... + 6190851.

It is an arithmetic number, because the mean of its divisors is an integer number (139030445736).

Almost surely, 2^{1111020211121} is an apocalyptic number.

It is an amenable number.

1111020211121 is a deficient number, since it is larger than the sum of its proper divisors (1223354767).

1111020211121 is a wasteful number, since it uses less digits than its factorization.

1111020211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188823.

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

Adding to 1111020211121 its reverse (1211120201111), we get a palindrome (2322140412232).

The spelling of 1111020211121 in words is "one trillion, one hundred eleven billion, twenty million, two hundred eleven thousand, one hundred twenty-one".