1222320001 has 8 divisors (see below), whose sum is σ = 1413768384. Its totient is φ = 1035079440.

The previous prime is 1222319977. The next prime is 1222320007. The reversal of 1222320001 is 1000232221.

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 1222320001 - 2⁹ = 1222319489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222320007) 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, 1051330 + ... + 1052491.

It is an arithmetic number, because the mean of its divisors is an integer number (176721048).

Almost surely, 2^1222320001 is an apocalyptic number.

It is an amenable number.

1222320001 is a deficient number, since it is larger than the sum of its proper divisors (191448383).

1222320001 is an equidigital number, since it uses as much as digits as its factorization.

1222320001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103911.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1222320001 is about 34961.6933371369. The cubic root of 1222320001 is about 1069.2066209462.

Adding to 1222320001 its reverse (1000232221), we get a palindrome (2222552222).

The spelling of 1222320001 in words is "one billion, two hundred twenty-two million, three hundred twenty thousand, one".