2112052221555 has 16 divisors (see below), whose sum is σ = 3401662919424. Its totient is φ = 1118968063200.

The previous prime is 2112052221553. The next prime is 2112052221569. The reversal of 2112052221555 is 5551222502112.

It is not a de Polignac number, because 2112052221555 - 2¹ = 2112052221553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2112052221553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466234429 + ... + 466238958.

It is an arithmetic number, because the mean of its divisors is an integer number (212603932464).

Almost surely, 2^{2112052221555} is an apocalyptic number.

2112052221555 is a deficient number, since it is larger than the sum of its proper divisors (1289610697869).

2112052221555 is a wasteful number, since it uses less digits than its factorization.

2112052221555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932473546.

The product of its (nonzero) digits is 20000, while the sum is 33.

Adding to 2112052221555 its reverse (5551222502112), we get a palindrome (7663274723667).

The spelling of 2112052221555 in words is "two trillion, one hundred twelve billion, fifty-two million, two hundred twenty-one thousand, five hundred fifty-five".