1222234322221 has 24 divisors (see below), whose sum is σ = 1349507376000. Its totient is φ = 1106113377600.

The previous prime is 1222234322203. The next prime is 1222234322279.

It is a happy number.

1222234322221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1222234322221 - 2¹¹ = 1222234320173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222234322221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222234322821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134439886 + ... + 134448976.

It is an arithmetic number, because the mean of its divisors is an integer number (56229474000).

Almost surely, 2^{1222234322221} is an apocalyptic number.

1222234322221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1222234322221 is a deficient number, since it is larger than the sum of its proper divisors (127273053779).

1222234322221 is a wasteful number, since it uses less digits than its factorization.

1222234322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14001 (or 13990 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

It can be divided in two parts, 122223 and 4322221, that added together give a palindrome (4444444).

The spelling of 1222234322221 in words is "one trillion, two hundred twenty-two billion, two hundred thirty-four million, three hundred twenty-two thousand, two hundred twenty-one".