1122122120111 has 4 divisors (see below), whose sum is σ = 1122395080224. Its totient is φ = 1121849160000.

The previous prime is 1122122120081. The next prime is 1122122120123. The reversal of 1122122120111 is 1110212212211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1122122120111 - 2⁶ = 1122122120047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1122122120111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122122120611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136473890 + ... + 136482111.

It is an arithmetic number, because the mean of its divisors is an integer number (280598770056).

Almost surely, 2^{1122122120111} is an apocalyptic number.

1122122120111 is a deficient number, since it is larger than the sum of its proper divisors (272960113).

1122122120111 is an equidigital number, since it uses as much as digits as its factorization.

1122122120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272960112.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1122122120111 its reverse (1110212212211), we get a palindrome (2232334332322).

The spelling of 1122122120111 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred twenty thousand, one hundred eleven".