2212345647 has 12 divisors (see below), whose sum is σ = 3200882880. Its totient is φ = 1472463648.

The previous prime is 2212345637. The next prime is 2212345669. The reversal of 2212345647 is 7465432122.

2212345647 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 3 + 4 + 5 + 647 = 666.

It is not a de Polignac number, because 2212345647 - 2⁸ = 2212345391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212345607) 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, 197022 + ... + 207947.

It is an arithmetic number, because the mean of its divisors is an integer number (266740240).

Almost surely, 2^2212345647 is an apocalyptic number.

2212345647 is a deficient number, since it is larger than the sum of its proper divisors (988537233).

2212345647 is a wasteful number, since it uses less digits than its factorization.

2212345647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405582 (or 405579 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 2212345647 is about 47035.5785230712. The cubic root of 2212345647 is about 1303.0197349403.

Adding to 2212345647 its reverse (7465432122), we get a palindrome (9677777769).

The spelling of 2212345647 in words is "two billion, two hundred twelve million, three hundred forty-five thousand, six hundred forty-seven".