1222422213 has 8 divisors (see below), whose sum is σ = 1725772608. Its totient is φ = 767009984.

The previous prime is 1222422211. The next prime is 1222422251. The reversal of 1222422213 is 3122242221.

1222422213 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 1222422213 - 2¹ = 1222422211 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222422213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222422211) 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, 11984481 + ... + 11984582.

It is an arithmetic number, because the mean of its divisors is an integer number (215721576).

Almost surely, 2^1222422213 is an apocalyptic number.

It is an amenable number.

1222422213 is a deficient number, since it is larger than the sum of its proper divisors (503350395).

1222422213 is a wasteful number, since it uses less digits than its factorization.

1222422213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23969083.

The product of its digits is 768, while the sum is 21.

The square root of 1222422213 is about 34963.1550778816. The cubic root of 1222422213 is about 1069.2364229350.

Adding to 1222422213 its reverse (3122242221), we get a palindrome (4344664434).

The spelling of 1222422213 in words is "one billion, two hundred twenty-two million, four hundred twenty-two thousand, two hundred thirteen".