1220332973 has 2 divisors, whose sum is σ = 1220332974. Its totient is φ = 1220332972.

The previous prime is 1220332937. The next prime is 1220333029. The reversal of 1220332973 is 3792330221.

Together with previous prime (1220332937) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1204228804 + 16104169 = 34702^2 + 4013^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220332973 - 2⁶ = 1220332909 is a prime.

It is a super-3 number, since 3×1220332973³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220332903) 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 as a sum of consecutive naturals, namely, 610166486 + 610166487.

It is an arithmetic number, because the mean of its divisors is an integer number (610166487).

Almost surely, 2^1220332973 is an apocalyptic number.

It is an amenable number.

1220332973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220332973 is an equidigital number, since it uses as much as digits as its factorization.

1220332973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 1220332973 is about 34933.2645625913. The cubic root of 1220332973 is about 1068.6269321123.

The spelling of 1220332973 in words is "one billion, two hundred twenty million, three hundred thirty-two thousand, nine hundred seventy-three".