1111200022121 has 8 divisors (see below), whose sum is σ = 1269953863680. Its totient is φ = 952448925888.

The previous prime is 1111200021979. The next prime is 1111200022151. The reversal of 1111200022121 is 1212200021111.

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 1111200022121 - 2¹⁰ = 1111200021097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111200022096 and 1111200022105.

It is not an unprimeable number, because it can be changed into a prime (1111200022151) 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, 269825 + ... + 1514993.

It is an arithmetic number, because the mean of its divisors is an integer number (158744232960).

Almost surely, 2^{1111200022121} is an apocalyptic number.

It is an amenable number.

1111200022121 is a deficient number, since it is larger than the sum of its proper divisors (158753841559).

1111200022121 is a wasteful number, since it uses less digits than its factorization.

1111200022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372663.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1111200022121 its reverse (1212200021111), we get a palindrome (2323400043232).

The spelling of 1111200022121 in words is "one trillion, one hundred eleven billion, two hundred million, twenty-two thousand, one hundred twenty-one".