1220020100011 has 4 divisors (see below), whose sum is σ = 1220154044800. Its totient is φ = 1219886155224.

The previous prime is 1220020099999. The next prime is 1220020100017. The reversal of 1220020100011 is 1100010200221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220020100011 - 2²³ = 1220011711403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220020100017) 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, 66958731 + ... + 66976948.

It is an arithmetic number, because the mean of its divisors is an integer number (305038511200).

Almost surely, 2^{1220020100011} is an apocalyptic number.

1220020100011 is a deficient number, since it is larger than the sum of its proper divisors (133944789).

1220020100011 is an equidigital number, since it uses as much as digits as its factorization.

1220020100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133944788.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1220020100011 its reverse (1100010200221), we get a palindrome (2320030300232).

The spelling of 1220020100011 in words is "one trillion, two hundred twenty billion, twenty million, one hundred thousand, eleven".