6485302111221 has 12 divisors (see below), whose sum is σ = 9370403348748. Its totient is φ = 4322267936064.

The previous prime is 6485302111217. The next prime is 6485302111231. The reversal of 6485302111221 is 1221112035846.

6485302111221 is a `hidden beast` number, since 6 + 4 + 8 + 530 + 2 + 1 + 112 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2472712220196 + 4012589891025 = 1572486^2 + 2003145^2 .

It is not a de Polignac number, because 6485302111221 - 2² = 6485302111217 is a prime.

It is a super-3 number, since 3×6485302111221³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6485302111231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105534640 + ... + 105596073.

It is an arithmetic number, because the mean of its divisors is an integer number (780866945729).

Almost surely, 2^{6485302111221} is an apocalyptic number.

It is an amenable number.

6485302111221 is a deficient number, since it is larger than the sum of its proper divisors (2885101237527).

6485302111221 is a wasteful number, since it uses less digits than its factorization.

6485302111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211134132 (or 211134129 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 6485302111221 in words is "six trillion, four hundred eighty-five billion, three hundred two million, one hundred eleven thousand, two hundred twenty-one".