1222342213 has 4 divisors (see below), whose sum is σ = 1233766080. Its totient is φ = 1210918348.

The previous prime is 1222342189. The next prime is 1222342321. The reversal of 1222342213 is 3122432221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3122432221 = 3329 ⋅937949.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222342213 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 (1222340213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5711773 + ... + 5711986.

It is an arithmetic number, because the mean of its divisors is an integer number (308441520).

Almost surely, 2^1222342213 is an apocalyptic number.

It is an amenable number.

1222342213 is a deficient number, since it is larger than the sum of its proper divisors (11423867).

1222342213 is a wasteful number, since it uses less digits than its factorization.

1222342213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11423866.

The product of its digits is 1152, while the sum is 22.

The square root of 1222342213 is about 34962.0109976529. The cubic root of 1222342213 is about 1069.2130974481.

Adding to 1222342213 its reverse (3122432221), we get a palindrome (4344774434).

The spelling of 1222342213 in words is "one billion, two hundred twenty-two million, three hundred forty-two thousand, two hundred thirteen".