1220011012209 has 8 divisors (see below), whose sum is σ = 1774561472352. Its totient is φ = 739400613440.

The previous prime is 1220011012159. The next prime is 1220011012223. The reversal of 1220011012209 is 9022101100221.

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 1220011012209 - 2⁸ = 1220011011953 is a prime.

It is a super-2 number, since 2×1220011012209² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220011012229) 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 7 ways as a sum of consecutive naturals, for example, 18485015304 + ... + 18485015369.

It is an arithmetic number, because the mean of its divisors is an integer number (221820184044).

Almost surely, 2^{1220011012209} is an apocalyptic number.

It is an amenable number.

1220011012209 is a deficient number, since it is larger than the sum of its proper divisors (554550460143).

1220011012209 is a wasteful number, since it uses less digits than its factorization.

1220011012209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36970030687.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 1220011012209 in words is "one trillion, two hundred twenty billion, eleven million, twelve thousand, two hundred nine".