1222522307 has 2 divisors, whose sum is σ = 1222522308. Its totient is φ = 1222522306.

The previous prime is 1222522247. The next prime is 1222522337. The reversal of 1222522307 is 7032252221.

It is a strong prime.

It is an emirp because it is prime and its reverse (7032252221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222522307 - 2¹² = 1222518211 is a prime.

It is a super-2 number, since 2×1222522307² = 2989121582225204498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1222522337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611261153 + 611261154.

It is an arithmetic number, because the mean of its divisors is an integer number (611261154).

Almost surely, 2^1222522307 is an apocalyptic number.

1222522307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222522307 is an equidigital number, since it uses as much as digits as its factorization.

1222522307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 1222522307 is about 34964.5864697411. The cubic root of 1222522307 is about 1069.2656057679.

Adding to 1222522307 its reverse (7032252221), we get a palindrome (8254774528).

The spelling of 1222522307 in words is "one billion, two hundred twenty-two million, five hundred twenty-two thousand, three hundred seven".