1222242422221 has 8 divisors (see below), whose sum is σ = 1234563922944. Its totient is φ = 1209925237200.

The previous prime is 1222242422201. The next prime is 1222242422249.

It is a happy number.

1222242422221 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222242422221 - 2¹⁵ = 1222242389453 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 1222242422221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222242422201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508141 + ... + 1643986.

It is an arithmetic number, because the mean of its divisors is an integer number (154320490368).

Almost surely, 2^{1222242422221} is an apocalyptic number.

It is an amenable number.

1222242422221 is a deficient number, since it is larger than the sum of its proper divisors (12321500723).

1222242422221 is a wasteful number, since it uses less digits than its factorization.

1222242422221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157851.

The product of its digits is 8192, while the sum is 28.

The spelling of 1222242422221 in words is "one trillion, two hundred twenty-two billion, two hundred forty-two million, four hundred twenty-two thousand, two hundred twenty-one".