1222175379 has 16 divisors (see below), whose sum is σ = 1675302048. Its totient is φ = 791960832.

The previous prime is 1222175377. The next prime is 1222175387. The reversal of 1222175379 is 9735712221.

It is not a de Polignac number, because 1222175379 - 2¹ = 1222175377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222175377) 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, 116749 + ... + 126785.

It is an arithmetic number, because the mean of its divisors is an integer number (104706378).

Almost surely, 2^1222175379 is an apocalyptic number.

1222175379 is a deficient number, since it is larger than the sum of its proper divisors (453126669).

1222175379 is a wasteful number, since it uses less digits than its factorization.

1222175379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11174.

The product of its digits is 52920, while the sum is 39.

The square root of 1222175379 is about 34959.6249836865. The cubic root of 1222175379 is about 1069.1644506202.

The spelling of 1222175379 in words is "one billion, two hundred twenty-two million, one hundred seventy-five thousand, three hundred seventy-nine".