2212222561066 has 16 divisors (see below), whose sum is σ = 3863935903104. Its totient is φ = 930206790864.

The previous prime is 2212222561057. The next prime is 2212222561123. The reversal of 2212222561066 is 6601652222122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1490715270 + ... + 1490716753.

It is an arithmetic number, because the mean of its divisors is an integer number (241495993944).

Almost surely, 2^{2212222561066} is an apocalyptic number.

2212222561066 is a deficient number, since it is larger than the sum of its proper divisors (1651713342038).

2212222561066 is a wasteful number, since it uses less digits than its factorization.

2212222561066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981432085.

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 2212222561066 its reverse (6601652222122), we get a palindrome (8813874783188).

The spelling of 2212222561066 in words is "two trillion, two hundred twelve billion, two hundred twenty-two million, five hundred sixty-one thousand, sixty-six".