1222636362221 has 16 divisors (see below), whose sum is σ = 1304044303680. Its totient is φ = 1142296646400.

The previous prime is 1222636362193. The next prime is 1222636362253.

1222636362221 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222636362221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222636362121) 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 15 ways as a sum of consecutive naturals, for example, 2587190 + ... + 3023048.

It is an arithmetic number, because the mean of its divisors is an integer number (81502768980).

Almost surely, 2^{1222636362221} is an apocalyptic number.

It is an amenable number.

1222636362221 is a deficient number, since it is larger than the sum of its proper divisors (81407941459).

1222636362221 is a wasteful number, since it uses less digits than its factorization.

1222636362221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437084.

The product of its digits is 124416, while the sum is 38.

The spelling of 1222636362221 in words is "one trillion, two hundred twenty-two billion, six hundred thirty-six million, three hundred sixty-two thousand, two hundred twenty-one".