2012323302221 has 4 divisors (see below), whose sum is σ = 2012327672832. Its totient is φ = 2012318931612.

The previous prime is 2012323302161. The next prime is 2012323302239. The reversal of 2012323302221 is 1222033232102.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012323302221 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 (2012323302721) 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, 1400795 + ... + 2446808.

It is an arithmetic number, because the mean of its divisors is an integer number (503081918208).

Almost surely, 2^{2012323302221} is an apocalyptic number.

It is an amenable number.

2012323302221 is a deficient number, since it is larger than the sum of its proper divisors (4370611).

2012323302221 is an equidigital number, since it uses as much as digits as its factorization.

2012323302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4370610.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2012323302221 its reverse (1222033232102), we get a palindrome (3234356534323).

The spelling of 2012323302221 in words is "two trillion, twelve billion, three hundred twenty-three million, three hundred two thousand, two hundred twenty-one".