1222443001 has 8 divisors (see below), whose sum is σ = 1347093440. Its totient is φ = 1102166352.

The previous prime is 1222442959. The next prime is 1222443067. The reversal of 1222443001 is 1003442221.

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 1222443001 - 2⁷ = 1222442873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222443001.

It is not an unprimeable number, because it can be changed into a prime (1222440001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1092861 + ... + 1093978.

It is an arithmetic number, because the mean of its divisors is an integer number (168386680).

Almost surely, 2^1222443001 is an apocalyptic number.

It is an amenable number.

1222443001 is a deficient number, since it is larger than the sum of its proper divisors (124650439).

1222443001 is a wasteful number, since it uses less digits than its factorization.

1222443001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186895.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1222443001 is about 34963.4523610012. The cubic root of 1222443001 is about 1069.2424838962.

Adding to 1222443001 its reverse (1003442221), we get a palindrome (2225885222).

It can be divided in two parts, 12224 and 43001, that added together give a square (55225 = 235²).

The spelling of 1222443001 in words is "one billion, two hundred twenty-two million, four hundred forty-three thousand, one".