221210423411 has 4 divisors (see below), whose sum is σ = 221316419952. Its totient is φ = 221104426872.

The previous prime is 221210423407. The next prime is 221210423417. The reversal of 221210423411 is 114324012122.

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 221210423411 - 2² = 221210423407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221210423417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52995140 + ... + 52999313.

It is an arithmetic number, because the mean of its divisors is an integer number (55329104988).

Almost surely, 2^221210423411 is an apocalyptic number.

221210423411 is a deficient number, since it is larger than the sum of its proper divisors (105996541).

221210423411 is a wasteful number, since it uses less digits than its factorization.

221210423411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105996540.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 221210423411 its reverse (114324012122), we get a palindrome (335534435533).

The spelling of 221210423411 in words is "two hundred twenty-one billion, two hundred ten million, four hundred twenty-three thousand, four hundred eleven".