12002244220021 has 4 divisors (see below), whose sum is σ = 13093357330944. Its totient is φ = 10911131109100.

The previous prime is 12002244219983. The next prime is 12002244220033.

12002244220021 is nontrivially palindromic in base 10.

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 12002244220021 - 2¹⁹ = 12002243695733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12002244219974 and 12002244220001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002244220061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545556555445 + ... + 545556555466.

It is an arithmetic number, because the mean of its divisors is an integer number (3273339332736).

Almost surely, 2^{12002244220021} is an apocalyptic number.

12002244220021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12002244220021 is a deficient number, since it is larger than the sum of its proper divisors (1091113110923).

12002244220021 is a wasteful number, since it uses less digits than its factorization.

12002244220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091113110922.

The product of its (nonzero) digits is 1024, while the sum is 22.

It can be divided in two parts, 1200224 and 4220021, that added together give a palindrome (5420245).

The spelling of 12002244220021 in words is "twelve trillion, two billion, two hundred forty-four million, two hundred twenty thousand, twenty-one".