1222854671 has 2 divisors, whose sum is σ = 1222854672. Its totient is φ = 1222854670.

The previous prime is 1222854623. The next prime is 1222854691. The reversal of 1222854671 is 1764582221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222854671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222854691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611427335 + 611427336.

It is an arithmetic number, because the mean of its divisors is an integer number (611427336).

Almost surely, 2^1222854671 is an apocalyptic number.

1222854671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222854671 is an equidigital number, since it uses as much as digits as its factorization.

1222854671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The square root of 1222854671 is about 34969.3390129124. The cubic root of 1222854671 is about 1069.3624964861.

The spelling of 1222854671 in words is "one billion, two hundred twenty-two million, eight hundred fifty-four thousand, six hundred seventy-one".