2212222561065 has 24 divisors (see below), whose sum is σ = 4183111752768. Its totient is φ = 1072592756640.

The previous prime is 2212222561057. The next prime is 2212222561123. The reversal of 2212222561065 is 5601652222122.

2212222561065 is a `hidden beast` number, since 2 + 2 + 12 + 2 + 2 + 25 + 610 + 6 + 5 = 666.

It is not a de Polignac number, because 2212222561065 - 2³ = 2212222561057 is a prime.

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 2234567749 + ... + 2234568738.

It is an arithmetic number, because the mean of its divisors is an integer number (174296323032).

Almost surely, 2^{2212222561065} is an apocalyptic number.

It is an amenable number.

2212222561065 is a deficient number, since it is larger than the sum of its proper divisors (1970889191703).

2212222561065 is a wasteful number, since it uses less digits than its factorization.

2212222561065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4469136509 (or 4469136506 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 2212222561065 its reverse (5601652222122), we get a palindrome (7813874783187).

The spelling of 2212222561065 in words is "two trillion, two hundred twelve billion, two hundred twenty-two million, five hundred sixty-one thousand, sixty-five".