1222011047 has 2 divisors, whose sum is σ = 1222011048. Its totient is φ = 1222011046.

The previous prime is 1222011031. The next prime is 1222011053. The reversal of 1222011047 is 7401102221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222011047 - 2⁴ = 1222011031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222011067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611005523 + 611005524.

It is an arithmetic number, because the mean of its divisors is an integer number (611005524).

Almost surely, 2^1222011047 is an apocalyptic number.

1222011047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222011047 is an equidigital number, since it uses as much as digits as its factorization.

1222011047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1222011047 is about 34957.2745934233. The cubic root of 1222011047 is about 1069.1165290177.

Adding to 1222011047 its reverse (7401102221), we get a palindrome (8623113268).

The spelling of 1222011047 in words is "one billion, two hundred twenty-two million, eleven thousand, forty-seven".