2221021020011 has 4 divisors (see below), whose sum is σ = 2221708858800. Its totient is φ = 2220333181224.

The previous prime is 2221021020007. The next prime is 2221021020017. The reversal of 2221021020011 is 1100201201222.

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 2221021020011 - 2² = 2221021020007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221021020017) 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, 343914551 + ... + 343921008.

It is an arithmetic number, because the mean of its divisors is an integer number (555427214700).

Almost surely, 2^{2221021020011} is an apocalyptic number.

2221021020011 is a deficient number, since it is larger than the sum of its proper divisors (687838789).

2221021020011 is an equidigital number, since it uses as much as digits as its factorization.

2221021020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687838788.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2221021020011 its reverse (1100201201222), we get a palindrome (3321222221233).

The spelling of 2221021020011 in words is "two trillion, two hundred twenty-one billion, twenty-one million, twenty thousand, eleven".