2112210550065 has 64 divisors (see below), whose sum is σ = 4228660224000. Its totient is φ = 874632695040.

The previous prime is 2112210550027. The next prime is 2112210550127. The reversal of 2112210550065 is 5600550122112.

It is not a de Polignac number, because 2112210550065 - 2¹² = 2112210545969 is a prime.

It is a super-2 number, since 2×2112210550065² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2981065 + ... + 3620934.

It is an arithmetic number, because the mean of its divisors is an integer number (66072816000).

Almost surely, 2^{2112210550065} is an apocalyptic number.

It is an amenable number.

2112210550065 is an abundant number, since it is smaller than the sum of its proper divisors (2116449673935).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2112210550065 is a wasteful number, since it uses less digits than its factorization.

2112210550065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6602302.

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 2112210550065 its reverse (5600550122112), we get a palindrome (7712760672177).

The spelling of 2112210550065 in words is "two trillion, one hundred twelve billion, two hundred ten million, five hundred fifty thousand, sixty-five".