1220321033 has 2 divisors, whose sum is σ = 1220321034. Its totient is φ = 1220321032.

The previous prime is 1220321023. The next prime is 1220321059. The reversal of 1220321033 is 3301230221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 714385984 + 505935049 = 26728^2 + 22493^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220321033 - 2⁴ = 1220321017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220321023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610160516 + 610160517.

It is an arithmetic number, because the mean of its divisors is an integer number (610160517).

Almost surely, 2^1220321033 is an apocalyptic number.

It is an amenable number.

1220321033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220321033 is an equidigital number, since it uses as much as digits as its factorization.

1220321033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1220321033 is about 34933.0936648903. The cubic root of 1220321033 is about 1068.6234468758.

Adding to 1220321033 its reverse (3301230221), we get a palindrome (4521551254).

The spelling of 1220321033 in words is "one billion, two hundred twenty million, three hundred twenty-one thousand, thirty-three".