221122020201111 has 16 divisors (see below), whose sum is σ = 328133249943520. Its totient is φ = 147169397793600.

The previous prime is 221122020201083. The next prime is 221122020201143. The reversal of 221122020201111 is 111102020221122.

221122020201111 is a `hidden beast` number, since 2 + 211 + 220 + 20 + 201 + 1 + 11 = 666.

It is not a de Polignac number, because 221122020201111 - 2¹¹ = 221122020199063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221122020271111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6813381820 + ... + 6813414273.

It is an arithmetic number, because the mean of its divisors is an integer number (20508328121470).

Almost surely, 2^{221122020201111} is an apocalyptic number.

221122020201111 is a deficient number, since it is larger than the sum of its proper divisors (107011229742409).

221122020201111 is a wasteful number, since it uses less digits than its factorization.

221122020201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13626796703 (or 13626796697 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 221122020201111 its reverse (111102020221122), we get a palindrome (332224040422233).

The spelling of 221122020201111 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, twenty million, two hundred one thousand, one hundred eleven".