1222310321 has 16 divisors (see below), whose sum is σ = 1296238464. Its totient is φ = 1150199424.

The previous prime is 1222310273. The next prime is 1222310339. The reversal of 1222310321 is 1230132221.

It is a cyclic number.

It is not a de Polignac number, because 1222310321 - 2¹⁴ = 1222293937 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 1222310321.

It is not an unprimeable number, because it can be changed into a prime (1222310351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 934550 + ... + 935856.

It is an arithmetic number, because the mean of its divisors is an integer number (81014904).

Almost surely, 2^1222310321 is an apocalyptic number.

It is an amenable number.

1222310321 is a deficient number, since it is larger than the sum of its proper divisors (73928143).

1222310321 is a wasteful number, since it uses less digits than its factorization.

1222310321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1222310321 is about 34961.5548996323. The cubic root of 1222310321 is about 1069.2037984591.

Adding to 1222310321 its reverse (1230132221), we get a palindrome (2452442542).

The spelling of 1222310321 in words is "one billion, two hundred twenty-two million, three hundred ten thousand, three hundred twenty-one".