1224221112213 has 24 divisors (see below), whose sum is σ = 1794237193728. Its totient is φ = 741926592000.

The previous prime is 1224221112193. The next prime is 1224221112241. The reversal of 1224221112213 is 3122111224221.

It is not a de Polignac number, because 1224221112213 - 2⁵ = 1224221112181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224221112253) 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, 19832908 + ... + 19894538.

It is an arithmetic number, because the mean of its divisors is an integer number (74759883072).

Almost surely, 2^{1224221112213} is an apocalyptic number.

It is an amenable number.

1224221112213 is a deficient number, since it is larger than the sum of its proper divisors (570016081515).

1224221112213 is a wasteful number, since it uses less digits than its factorization.

1224221112213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116377 (or 116366 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

Adding to 1224221112213 its reverse (3122111224221), we get a palindrome (4346332336434).

The spelling of 1224221112213 in words is "one trillion, two hundred twenty-four billion, two hundred twenty-one million, one hundred twelve thousand, two hundred thirteen".