65121112 has 16 divisors (see below), whose sum is σ = 139545360. Its totient is φ = 27909024.

The previous prime is 65121103. The next prime is 65121127. The reversal of 65121112 is 21112156.

It is a self number, because there is not a number n which added to its sum of digits gives 65121112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581383 + ... + 581494.

It is an arithmetic number, because the mean of its divisors is an integer number (8721585).

Almost surely, 2^65121112 is an apocalyptic number.

It is an amenable number.

65121112 is an abundant number, since it is smaller than the sum of its proper divisors (74424248).

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

65121112 is a wasteful number, since it uses less digits than its factorization.

65121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162890 (or 1162886 counting only the distinct ones).

The product of its digits is 120, while the sum is 19.

The square root of 65121112 is about 8069.7653001807. The cubic root of 65121112 is about 402.3221430421.

Adding to 65121112 its reverse (21112156), we get a palindrome (86233268).

The spelling of 65121112 in words is "sixty-five million, one hundred twenty-one thousand, one hundred twelve".