221002120012011 has 16 divisors (see below), whose sum is σ = 324088215273984. Its totient is φ = 133107659842464.

The previous prime is 221002120011997. The next prime is 221002120012087. The reversal of 221002120012011 is 110210021200122.

It is not a de Polignac number, because 221002120012011 - 2¹⁵ = 221002119979243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221002120012111) 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 15 ways as a sum of consecutive naturals, for example, 60284264401 + ... + 60284268066.

It is an arithmetic number, because the mean of its divisors is an integer number (20255513454624).

Almost surely, 2^{221002120012011} is an apocalyptic number.

221002120012011 is a deficient number, since it is larger than the sum of its proper divisors (103086095261973).

221002120012011 is a wasteful number, since it uses less digits than its factorization.

221002120012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120568532530.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221002120012011 its reverse (110210021200122), we get a palindrome (331212141212133).

The spelling of 221002120012011 in words is "two hundred twenty-one trillion, two billion, one hundred twenty million, twelve thousand, eleven".