2320012221 has 16 divisors (see below), whose sum is σ = 3178779648. Its totient is φ = 1504008000.

The previous prime is 2320012187. The next prime is 2320012237. The reversal of 2320012221 is 1222100232.

It is a happy number.

It is not a de Polignac number, because 2320012221 - 2²⁷ = 2185794493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2320012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320012421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229371 + ... + 239271.

It is an arithmetic number, because the mean of its divisors is an integer number (198673728).

Almost surely, 2^2320012221 is an apocalyptic number.

It is an amenable number.

2320012221 is a deficient number, since it is larger than the sum of its proper divisors (858767427).

2320012221 is a wasteful number, since it uses less digits than its factorization.

2320012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12052.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2320012221 is about 48166.5051773533. The cubic root of 2320012221 is about 1323.8235140866.

Adding to 2320012221 its reverse (1222100232), we get a palindrome (3542112453).

The spelling of 2320012221 in words is "two billion, three hundred twenty million, twelve thousand, two hundred twenty-one".