1220064211109 has 4 divisors (see below), whose sum is σ = 1231909494816. Its totient is φ = 1208218927404.

The previous prime is 1220064211099. The next prime is 1220064211111. The reversal of 1220064211109 is 9011124600221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1220064211109 - 2³⁶ = 1151344734373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220064211159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5922641699 + ... + 5922641904.

It is an arithmetic number, because the mean of its divisors is an integer number (307977373704).

Almost surely, 2^{1220064211109} is an apocalyptic number.

It is an amenable number.

1220064211109 is a deficient number, since it is larger than the sum of its proper divisors (11845283707).

1220064211109 is a wasteful number, since it uses less digits than its factorization.

1220064211109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11845283706.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 1220064211109 in words is "one trillion, two hundred twenty billion, sixty-four million, two hundred eleven thousand, one hundred nine".