1220012201209 has 8 divisors (see below), whose sum is σ = 1225956221568. Its totient is φ = 1214082419280.

The previous prime is 1220012201171. The next prime is 1220012201249. The reversal of 1220012201209 is 9021022100221.

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 1220012201209 - 2⁹ = 1220012200697 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 1220012201209.

It is not an unprimeable number, because it can be changed into a prime (1220012201249) 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, 3387802 + ... + 3730579.

It is an arithmetic number, because the mean of its divisors is an integer number (153244527696).

Almost surely, 2^{1220012201209} is an apocalyptic number.

It is an amenable number.

1220012201209 is a deficient number, since it is larger than the sum of its proper divisors (5944020359).

1220012201209 is an equidigital number, since it uses as much as digits as its factorization.

1220012201209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7119215.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 1220012201209 in words is "one trillion, two hundred twenty billion, twelve million, two hundred one thousand, two hundred nine".