1220332310009 has 12 divisors (see below), whose sum is σ = 1250597736612. Its totient is φ = 1190783210400.

The previous prime is 1220332309961. The next prime is 1220332310039. The reversal of 1220332310009 is 9000132330221.

It can be written as a sum of positive squares in 2 ways, for example, as 807352566784 + 412979743225 = 898528^2 + 642635^2 .

It is not a de Polignac number, because 1220332310009 - 2³² = 1216037342713 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 1220332310009.

It is not an unprimeable number, because it can be changed into a prime (1220332310039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1564619 + ... + 2211039.

It is an arithmetic number, because the mean of its divisors is an integer number (104216478051).

Almost surely, 2^{1220332310009} is an apocalyptic number.

It is an amenable number.

1220332310009 is a deficient number, since it is larger than the sum of its proper divisors (30265426603).

1220332310009 is an equidigital number, since it uses as much as digits as its factorization.

1220332310009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647528 (or 647485 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 1220332310009 in words is "one trillion, two hundred twenty billion, three hundred thirty-two million, three hundred ten thousand, nine".