221343213141 has 20 divisors (see below), whose sum is σ = 330664292992. Its totient is φ = 147555095688.

The previous prime is 221343213137. The next prime is 221343213191. The reversal of 221343213141 is 141312343122.

221343213141 is a `hidden beast` number, since 2 + 2 + 1 + 343 + 2 + 1 + 314 + 1 = 666.

It is not a de Polignac number, because 221343213141 - 2² = 221343213137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221343213101) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2070300 + ... + 2174586.

Almost surely, 2^221343213141 is an apocalyptic number.

It is an amenable number.

221343213141 is a deficient number, since it is larger than the sum of its proper divisors (109321079851).

221343213141 is a wasteful number, since it uses less digits than its factorization.

221343213141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130502 (or 130493 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 221343213141 its reverse (141312343122), we get a palindrome (362655556263).

The spelling of 221343213141 in words is "two hundred twenty-one billion, three hundred forty-three million, two hundred thirteen thousand, one hundred forty-one".