2112212101011 has 4 divisors (see below), whose sum is σ = 2816282801352. Its totient is φ = 1408141400672.

The previous prime is 2112212101003. The next prime is 2112212101121. The reversal of 2112212101011 is 1101012122112.

It is a happy number.

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 2112212101011 - 2³ = 2112212101003 is a prime.

It is a super-2 number, since 2×2112212101011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112212171011) 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, 352035350166 + ... + 352035350171.

It is an arithmetic number, because the mean of its divisors is an integer number (704070700338).

Almost surely, 2^{2112212101011} is an apocalyptic number.

2112212101011 is a deficient number, since it is larger than the sum of its proper divisors (704070700341).

2112212101011 is an equidigital number, since it uses as much as digits as its factorization.

2112212101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704070700340.

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

Adding to 2112212101011 its reverse (1101012122112), we get a palindrome (3213224223123).

The spelling of 2112212101011 in words is "two trillion, one hundred twelve billion, two hundred twelve million, one hundred one thousand, eleven".