1222422211 has 2 divisors, whose sum is σ = 1222422212. Its totient is φ = 1222422210.

The previous prime is 1222422199. The next prime is 1222422251. The reversal of 1222422211 is 1122242221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222422211 is a prime.

It is a super-2 number, since 2×1222422211² = 2988632123892257042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1222422251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611211105 + 611211106.

It is an arithmetic number, because the mean of its divisors is an integer number (611211106).

Almost surely, 2^1222422211 is an apocalyptic number.

1222422211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222422211 is an equidigital number, since it uses as much as digits as its factorization.

1222422211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 256, while the sum is 19.

The square root of 1222422211 is about 34963.1550492801. The cubic root of 1222422211 is about 1069.2364223519.

Adding to 1222422211 its reverse (1122242221), we get a palindrome (2344664432).

The spelling of 1222422211 in words is "one billion, two hundred twenty-two million, four hundred twenty-two thousand, two hundred eleven".