1220768820001 has 4 divisors (see below), whose sum is σ = 1221952883904. Its totient is φ = 1219584756100.

The previous prime is 1220768819971. The next prime is 1220768820017. The reversal of 1220768820001 is 1000288670221.

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 1220768820001 - 2⁹ = 1220768819489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220768820301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592030405 + ... + 592032466.

It is an arithmetic number, because the mean of its divisors is an integer number (305488220976).

Almost surely, 2^{1220768820001} is an apocalyptic number.

It is an amenable number.

1220768820001 is a deficient number, since it is larger than the sum of its proper divisors (1184063903).

1220768820001 is a wasteful number, since it uses less digits than its factorization.

1220768820001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184063902.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 1220768820001 in words is "one trillion, two hundred twenty billion, seven hundred sixty-eight million, eight hundred twenty thousand, one".