221424221141 has 4 divisors (see below), whose sum is σ = 228566937984. Its totient is φ = 214281504300.

The previous prime is 221424221131. The next prime is 221424221143. The reversal of 221424221141 is 141122424122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221424221141 - 2¹⁸ = 221423958997 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 221424221141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221424221143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3571358375 + ... + 3571358436.

It is an arithmetic number, because the mean of its divisors is an integer number (57141734496).

Almost surely, 2^221424221141 is an apocalyptic number.

It is an amenable number.

221424221141 is a deficient number, since it is larger than the sum of its proper divisors (7142716843).

221424221141 is an equidigital number, since it uses as much as digits as its factorization.

221424221141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7142716842.

The product of its digits is 2048, while the sum is 26.

Adding to 221424221141 its reverse (141122424122), we get a palindrome (362546645263).

The spelling of 221424221141 in words is "two hundred twenty-one billion, four hundred twenty-four million, two hundred twenty-one thousand, one hundred forty-one".