2111222112201 has 10 divisors (see below), whose sum is σ = 3153800933162. Its totient is φ = 1407481408080.

The previous prime is 2111222112199. The next prime is 2111222112271. The reversal of 2111222112201 is 1022112221112.

2111222112201 is a `hidden beast` number, since 211 + 1 + 22 + 211 + 220 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1523308882176 + 587913230025 = 1234224^2 + 766755^2 .

It is not a de Polignac number, because 2111222112201 - 2¹ = 2111222112199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111222112271) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13032235180 + ... + 13032235341.

Almost surely, 2^{2111222112201} is an apocalyptic number.

It is an amenable number.

2111222112201 is a deficient number, since it is larger than the sum of its proper divisors (1042578820961).

2111222112201 is an equidigital number, since it uses as much as digits as its factorization.

2111222112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26064470533 (or 26064470524 counting only the distinct ones).

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

Adding to 2111222112201 its reverse (1022112221112), we get a palindrome (3133334333313).

The spelling of 2111222112201 in words is "two trillion, one hundred eleven billion, two hundred twenty-two million, one hundred twelve thousand, two hundred one".