12122111011011 has 32 divisors (see below), whose sum is σ = 16620461383680. Its totient is φ = 7854102489600.

The previous prime is 12122111010959. The next prime is 12122111011061. The reversal of 12122111011011 is 11011011122121.

It is not a de Polignac number, because 12122111011011 - 2¹⁷ = 12122110879939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12122111011061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284742535 + ... + 284785103.

It is an arithmetic number, because the mean of its divisors is an integer number (519389418240).

Almost surely, 2^{12122111011011} is an apocalyptic number.

12122111011011 is a deficient number, since it is larger than the sum of its proper divisors (4498350372669).

12122111011011 is a wasteful number, since it uses less digits than its factorization.

12122111011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51427.

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

Adding to 12122111011011 its reverse (11011011122121), we get a palindrome (23133122133132).

It can be divided in two parts, 121221110 and 11011, that added together give a palindrome (121232121).

The spelling of 12122111011011 in words is "twelve trillion, one hundred twenty-two billion, one hundred eleven million, eleven thousand, eleven".