1222077705 has 16 divisors (see below), whose sum is σ = 1956353280. Its totient is φ = 651431808.

The previous prime is 1222077697. The next prime is 1222077707. The reversal of 1222077705 is 5077702221.

It is not a de Polignac number, because 1222077705 - 2³ = 1222077697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1222077707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9456 + ... + 50334.

It is an arithmetic number, because the mean of its divisors is an integer number (122272080).

Almost surely, 2^1222077705 is an apocalyptic number.

1222077705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222077705 is a deficient number, since it is larger than the sum of its proper divisors (734275575).

1222077705 is a wasteful number, since it uses less digits than its factorization.

1222077705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42880.

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 1222077705 is about 34958.2280014305. The cubic root of 1222077705 is about 1069.1359679784.

Adding to 1222077705 its reverse (5077702221), we get a palindrome (6299779926).

The spelling of 1222077705 in words is "one billion, two hundred twenty-two million, seventy-seven thousand, seven hundred five".