12122222011101 has 12 divisors (see below), whose sum is σ = 17539705677312. Its totient is φ = 8067713907336.

The previous prime is 12122222011043. The next prime is 12122222011127. The reversal of 12122222011101 is 10111022222121.

12122222011101 is a `hidden beast` number, since 121 + 222 + 220 + 1 + 1 + 101 = 666.

It is not a de Polignac number, because 12122222011101 - 2⁹ = 12122222010589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122222011001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1147280541 + ... + 1147291106.

It is an arithmetic number, because the mean of its divisors is an integer number (1461642139776).

Almost surely, 2^{12122222011101} is an apocalyptic number.

It is an amenable number.

12122222011101 is a deficient number, since it is larger than the sum of its proper divisors (5417483666211).

12122222011101 is a wasteful number, since it uses less digits than its factorization.

12122222011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294572240 (or 2294572237 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12122222011101 its reverse (10111022222121), we get a palindrome (22233244233222).

The spelling of 12122222011101 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, eleven thousand, one hundred one".