221003022131011 has 4 divisors (see below), whose sum is σ = 221141408495872. Its totient is φ = 220864635766152.

The previous prime is 221003022131009. The next prime is 221003022131027. The reversal of 221003022131011 is 110131220300122.

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 221003022131011 - 2¹ = 221003022131009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221003022131011.

It is not an unprimeable number, because it can be changed into a prime (221003022231011) 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 3 ways as a sum of consecutive naturals, for example, 69193180035 + ... + 69193183228.

It is an arithmetic number, because the mean of its divisors is an integer number (55285352123968).

Almost surely, 2^{221003022131011} is an apocalyptic number.

221003022131011 is a deficient number, since it is larger than the sum of its proper divisors (138386364861).

221003022131011 is a wasteful number, since it uses less digits than its factorization.

221003022131011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138386364860.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 221003022131011 its reverse (110131220300122), we get a palindrome (331134242431133).

The spelling of 221003022131011 in words is "two hundred twenty-one trillion, three billion, twenty-two million, one hundred thirty-one thousand, eleven".