1111201122111 has 8 divisors (see below), whose sum is σ = 1481609195904. Its totient is φ = 740796898200.

The previous prime is 1111201122047. The next prime is 1111201122121. The reversal of 1111201122111 is 1112211021111.

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

It is not a de Polignac number, because 1111201122111 - 2⁶ = 1111201122047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111201122121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203491 + ... + 1504596.

It is an arithmetic number, because the mean of its divisors is an integer number (185201149488).

Almost surely, 2^{1111201122111} is an apocalyptic number.

1111201122111 is a deficient number, since it is larger than the sum of its proper divisors (370408073793).

1111201122111 is a wasteful number, since it uses less digits than its factorization.

1111201122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924941.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 1111201122111 its reverse (1112211021111), we get a palindrome (2223412143222).

The spelling of 1111201122111 in words is "one trillion, one hundred eleven billion, two hundred one million, one hundred twenty-two thousand, one hundred eleven".