2212101222111 has 80 divisors (see below), whose sum is σ = 3670999833600. Its totient is φ = 1316245291200.

The previous prime is 2212101222077. The next prime is 2212101222119. The reversal of 2212101222111 is 1112221012122.

2212101222111 is a `hidden beast` number, since 221 + 210 + 1 + 2 + 221 + 11 = 666.

2212101222111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-2212101222111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212101222119) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15046225 + ... + 15192533.

It is an arithmetic number, because the mean of its divisors is an integer number (45887497920).

Almost surely, 2^{2212101222111} is an apocalyptic number.

2212101222111 is a deficient number, since it is larger than the sum of its proper divisors (1458898611489).

2212101222111 is a wasteful number, since it uses less digits than its factorization.

2212101222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146642 (or 146633 counting only the distinct ones).

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

Adding to 2212101222111 its reverse (1112221012122), we get a palindrome (3324322234233).

The spelling of 2212101222111 in words is "two trillion, two hundred twelve billion, one hundred one million, two hundred twenty-two thousand, one hundred eleven".