12013000302221 has 4 divisors (see below), whose sum is σ = 12013361661312. Its totient is φ = 12012638943132.

The previous prime is 12013000302187. The next prime is 12013000302239. The reversal of 12013000302221 is 12220300031021.

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 not a de Polignac number, because 12013000302221 - 2⁶ = 12013000302157 is a prime.

It is a super-2 number, since 2×12013000302221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12013000302221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013000307221) 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, 180629675 + ... + 180696168.

It is an arithmetic number, because the mean of its divisors is an integer number (3003340415328).

Almost surely, 2^{12013000302221} is an apocalyptic number.

It is an amenable number.

12013000302221 is a deficient number, since it is larger than the sum of its proper divisors (361359091).

12013000302221 is an equidigital number, since it uses as much as digits as its factorization.

12013000302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361359090.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12013000302221 its reverse (12220300031021), we get a palindrome (24233300333242).

The spelling of 12013000302221 in words is "twelve trillion, thirteen billion, three hundred two thousand, two hundred twenty-one".