1121100122111 has 8 divisors (see below), whose sum is σ = 1122624074880. Its totient is φ = 1119576342528.

The previous prime is 1121100122099. The next prime is 1121100122117. The reversal of 1121100122111 is 1112210011211.

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 1121100122111 - 2⁶ = 1121100122047 is a prime.

It is a super-2 number, since 2×1121100122111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121100122117) 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, 17907215 + ... + 17969711.

It is an arithmetic number, because the mean of its divisors is an integer number (140328009360).

Almost surely, 2^{1121100122111} is an apocalyptic number.

1121100122111 is a deficient number, since it is larger than the sum of its proper divisors (1523952769).

1121100122111 is an equidigital number, since it uses as much as digits as its factorization.

1121100122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86593.

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

Adding to 1121100122111 its reverse (1112210011211), we get a palindrome (2233310133322).

The spelling of 1121100122111 in words is "one trillion, one hundred twenty-one billion, one hundred million, one hundred twenty-two thousand, one hundred eleven".