65021112 has 48 divisors (see below), whose sum is σ = 189647640. Its totient is φ = 20006208.

The previous prime is 65021093. The next prime is 65021113. The reversal of 65021112 is 21112056.

65021112 is a `hidden beast` number, since 650 + 2 + 1 + 1 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65021113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33798 + ... + 35669.

Almost surely, 2^65021112 is an apocalyptic number.

It is an amenable number.

65021112 is an abundant number, since it is smaller than the sum of its proper divisors (124626528).

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

65021112 is a wasteful number, since it uses less digits than its factorization.

65021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69492 (or 69485 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 65021112 is about 8063.5669526581. The cubic root of 65021112 is about 402.1161022043.

Adding to 65021112 its reverse (21112056), we get a palindrome (86133168).

The spelling of 65021112 in words is "sixty-five million, twenty-one thousand, one hundred twelve".