2112220111101 has 8 divisors (see below), whose sum is σ = 2816428322400. Its totient is φ = 1408079320272.

The previous prime is 2112220111097. The next prime is 2112220111103. The reversal of 2112220111101 is 1011110222112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2112220111101 - 2² = 2112220111097 is a prime.

It is a super-2 number, since 2×2112220111101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112220111103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16781970 + ... + 16907363.

It is an arithmetic number, because the mean of its divisors is an integer number (352053540300).

Almost surely, 2^{2112220111101} is an apocalyptic number.

It is an amenable number.

2112220111101 is a deficient number, since it is larger than the sum of its proper divisors (704208211299).

2112220111101 is a wasteful number, since it uses less digits than its factorization.

2112220111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33710235.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2112220111101 its reverse (1011110222112), we get a palindrome (3123330333213).

The spelling of 2112220111101 in words is "two trillion, one hundred twelve billion, two hundred twenty million, one hundred eleven thousand, one hundred one".