65224012 has 24 divisors (see below), whose sum is σ = 130636800. Its totient is φ = 27912720.

The previous prime is 65224001. The next prime is 65224013. The reversal of 65224012 is 21042256.

It is a super-2 number, since 2×65224012² = 8508343482752288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65224013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25989 + ... + 28387.

It is an arithmetic number, because the mean of its divisors is an integer number (5443200).

Almost surely, 2^65224012 is an apocalyptic number.

It is an amenable number.

65224012 is an abundant number, since it is smaller than the sum of its proper divisors (65412788).

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

65224012 is a wasteful number, since it uses less digits than its factorization.

65224012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381 (or 3379 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 65224012 is about 8076.1384336823. The cubic root of 65224012 is about 402.5339389871.

Adding to 65224012 its reverse (21042256), we get a palindrome (86266268).

The spelling of 65224012 in words is "sixty-five million, two hundred twenty-four thousand, twelve".