2201232645 has 16 divisors (see below), whose sum is σ = 3913302720. Its totient is φ = 1173990672.

The previous prime is 2201232643. The next prime is 2201232647. The reversal of 2201232645 is 5462321022.

It is a happy number.

2201232645 is a `hidden beast` number, since 2 + 2 + 0 + 12 + 3 + 2 + 645 = 666.

It is an interprime number because it is at equal distance from previous prime (2201232643) and next prime (2201232647).

It is not a de Polignac number, because 2201232645 - 2¹ = 2201232643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201232643) 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 15 ways as a sum of consecutive naturals, for example, 8152579 + ... + 8152848.

It is an arithmetic number, because the mean of its divisors is an integer number (244581420).

Almost surely, 2^2201232645 is an apocalyptic number.

It is an amenable number.

2201232645 is a deficient number, since it is larger than the sum of its proper divisors (1712070075).

2201232645 is a wasteful number, since it uses less digits than its factorization.

2201232645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16305441 (or 16305435 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2201232645 is about 46917.2957980317. The cubic root of 2201232645 is about 1300.8343056730.

Adding to 2201232645 its reverse (5462321022), we get a palindrome (7663553667).

The spelling of 2201232645 in words is "two billion, two hundred one million, two hundred thirty-two thousand, six hundred forty-five".