1121100212111 has 8 divisors (see below), whose sum is σ = 1225509291648. Its totient is φ = 1017106279000.

The previous prime is 1121100212081. The next prime is 1121100212171. The reversal of 1121100212111 is 1112120011211.

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 1121100212111 - 2³⁰ = 1120026470287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121100212171) 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, 103780955 + ... + 103791756.

It is an arithmetic number, because the mean of its divisors is an integer number (153188661456).

Almost surely, 2^{1121100212111} is an apocalyptic number.

1121100212111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121100212111 is a deficient number, since it is larger than the sum of its proper divisors (104409079537).

1121100212111 is a wasteful number, since it uses less digits than its factorization.

1121100212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207573213.

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

Adding to 1121100212111 its reverse (1112120011211), we get a palindrome (2233220223322).

The spelling of 1121100212111 in words is "one trillion, one hundred twenty-one billion, one hundred million, two hundred twelve thousand, one hundred eleven".