1122120211111 has 8 divisors (see below), whose sum is σ = 1141155792000. Its totient is φ = 1103085183480.

The previous prime is 1122120211081. The next prime is 1122120211127. The reversal of 1122120211111 is 1111120212211.

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 1122120211111 - 2³³ = 1113530276519 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 (1122120211171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7483606 + ... + 7632076.

It is an arithmetic number, because the mean of its divisors is an integer number (142644474000).

Almost surely, 2^{1122120211111} is an apocalyptic number.

1122120211111 is a deficient number, since it is larger than the sum of its proper divisors (19035580889).

1122120211111 is a wasteful number, since it uses less digits than its factorization.

1122120211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276629.

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

Adding to 1122120211111 its reverse (1111120212211), we get a palindrome (2233240423322).

The spelling of 1122120211111 in words is "one trillion, one hundred twenty-two billion, one hundred twenty million, two hundred eleven thousand, one hundred eleven".