12222333322221 has 64 divisors (see below), whose sum is σ = 18430193295360. Its totient is φ = 7139499874560.

The previous prime is 12222333322219. The next prime is 12222333322231.

It is a happy number.

12222333322221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12222333322221 - 2¹ = 12222333322219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222333322231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 804781590 + ... + 804796776.

It is an arithmetic number, because the mean of its divisors is an integer number (287971770240).

Almost surely, 2^{12222333322221} is an apocalyptic number.

12222333322221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12222333322221 is a deficient number, since it is larger than the sum of its proper divisors (6207859973139).

12222333322221 is a wasteful number, since it uses less digits than its factorization.

12222333322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21394.

The product of its digits is 20736, while the sum is 30.

It can be divided in two parts, 1222233 and 3322221, that added together give a palindrome (4544454).

The spelling of 12222333322221 in words is "twelve trillion, two hundred twenty-two billion, three hundred thirty-three million, three hundred twenty-two thousand, two hundred twenty-one".