1220021010011 has 8 divisors (see below), whose sum is σ = 1232629998864. Its totient is φ = 1207461958560.

The previous prime is 1220021010001. The next prime is 1220021010023. The reversal of 1220021010011 is 1100101200221.

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 1220021010011 - 2⁶ = 1220021009947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220021009974 and 1220021010001.

It is not an unprimeable number, because it can be changed into a prime (1220021010001) 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 7 ways as a sum of consecutive naturals, for example, 12435236 + ... + 12532961.

It is an arithmetic number, because the mean of its divisors is an integer number (154078749858).

Almost surely, 2^{1220021010011} is an apocalyptic number.

1220021010011 is a deficient number, since it is larger than the sum of its proper divisors (12608988853).

1220021010011 is a wasteful number, since it uses less digits than its factorization.

1220021010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24968701.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1220021010011 its reverse (1100101200221), we get a palindrome (2320122210232).

The spelling of 1220021010011 in words is "one trillion, two hundred twenty billion, twenty-one million, ten thousand, eleven".