65002233221 has 4 divisors (see below), whose sum is σ = 65002960512. Its totient is φ = 65001505932.

The previous prime is 65002233217. The next prime is 65002233227. The reversal of 65002233221 is 12233220056.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 65002233221 - 2² = 65002233217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65002233227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207125 + ... + 415818.

It is an arithmetic number, because the mean of its divisors is an integer number (16250740128).

Almost surely, 2^65002233221 is an apocalyptic number.

It is an amenable number.

65002233221 is a deficient number, since it is larger than the sum of its proper divisors (727291).

65002233221 is a wasteful number, since it uses less digits than its factorization.

65002233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727290.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 65002233221 its reverse (12233220056), we get a palindrome (77235453277).

The spelling of 65002233221 in words is "sixty-five billion, two million, two hundred thirty-three thousand, two hundred twenty-one".