1222057407 has 8 divisors (see below), whose sum is σ = 1634027184. Its totient is φ = 812396288.

The previous prime is 1222057391. The next prime is 1222057433. The reversal of 1222057407 is 7047502221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222057407 - 2⁴ = 1222057391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222050407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575928 + ... + 578045.

It is an arithmetic number, because the mean of its divisors is an integer number (204253398).

Almost surely, 2^1222057407 is an apocalyptic number.

1222057407 is a deficient number, since it is larger than the sum of its proper divisors (411969777).

1222057407 is a wasteful number, since it uses less digits than its factorization.

1222057407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154329.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 1222057407 is about 34957.9376823061. The cubic root of 1222057407 is about 1069.1300487034.

Adding to 1222057407 its reverse (7047502221), we get a palindrome (8269559628).

The spelling of 1222057407 in words is "one billion, two hundred twenty-two million, fifty-seven thousand, four hundred seven".