1220222347 has 2 divisors, whose sum is σ = 1220222348. Its totient is φ = 1220222346.

The previous prime is 1220222317. The next prime is 1220222359. The reversal of 1220222347 is 7432220221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220222347 - 2⁷ = 1220222219 is a prime.

It is a super-2 number, since 2×1220222347² = 2977885152236376818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1220222317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610111173 + 610111174.

It is an arithmetic number, because the mean of its divisors is an integer number (610111174).

Almost surely, 2^1220222347 is an apocalyptic number.

1220222347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220222347 is an equidigital number, since it uses as much as digits as its factorization.

1220222347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 1220222347 is about 34931.6811361835. The cubic root of 1220222347 is about 1068.5946399707.

Adding to 1220222347 its reverse (7432220221), we get a palindrome (8652442568).

The spelling of 1220222347 in words is "one billion, two hundred twenty million, two hundred twenty-two thousand, three hundred forty-seven".