12222302000021 has 4 divisors (see below), whose sum is σ = 12264016341612. Its totient is φ = 12180587658432.

The previous prime is 12222302000017. The next prime is 12222302000023. The reversal of 12222302000021 is 12000020322221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9860667628900 + 2361634371121 = 3140170^2 + 1536761^2 .

It is a cyclic number.

It is not a de Polignac number, because 12222302000021 - 2² = 12222302000017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222302000023) 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, 20857170356 + ... + 20857170941.

It is an arithmetic number, because the mean of its divisors is an integer number (3066004085403).

Almost surely, 2^{12222302000021} is an apocalyptic number.

It is an amenable number.

12222302000021 is a deficient number, since it is larger than the sum of its proper divisors (41714341591).

12222302000021 is an equidigital number, since it uses as much as digits as its factorization.

12222302000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41714341590.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12222302000021 its reverse (12000020322221), we get a palindrome (24222322322242).

The spelling of 12222302000021 in words is "twelve trillion, two hundred twenty-two billion, three hundred two million, twenty-one", and thus it is an aban number.