222222001111101 has 12 divisors (see below), whose sum is σ = 323141612355900. Its totient is φ = 147153718855680.

The previous prime is 222222001111093. The next prime is 222222001111177. The reversal of 222222001111101 is 101111100222222.

222222001111101 is a `hidden beast` number, since 2 + 222 + 220 + 0 + 111 + 110 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41569611502500 + 180652389608601 = 6447450^2 + 13440699^2 .

It is not a de Polignac number, because 222222001111101 - 2³ = 222222001111093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222001101101) 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 11 ways as a sum of consecutive naturals, for example, 82856822340 + ... + 82856825021.

It is an arithmetic number, because the mean of its divisors is an integer number (26928467696325).

Almost surely, 2^{222222001111101} is an apocalyptic number.

It is an amenable number.

222222001111101 is a deficient number, since it is larger than the sum of its proper divisors (100919611244799).

222222001111101 is a wasteful number, since it uses less digits than its factorization.

222222001111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165713647516 (or 165713647513 counting only the distinct ones).

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

Adding to 222222001111101 its reverse (101111100222222), we get a palindrome (323333101333323).

The spelling of 222222001111101 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one million, one hundred eleven thousand, one hundred one".