221141443 has 8 divisors (see below), whose sum is σ = 229366800. Its totient is φ = 212956128.

The previous prime is 221141377. The next prime is 221141467. The reversal of 221141443 is 344141122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221141443 - 2¹³ = 221133251 is a prime.

It is a super-3 number, since 3×221141443³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (221141483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1480 + ... + 21082.

It is an arithmetic number, because the mean of its divisors is an integer number (28670850).

Almost surely, 2^221141443 is an apocalyptic number.

221141443 is a deficient number, since it is larger than the sum of its proper divisors (8225357).

221141443 is a wasteful number, since it uses less digits than its factorization.

221141443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20021.

The product of its digits is 768, while the sum is 22.

The square root of 221141443 is about 14870.8252292870. The cubic root of 221141443 is about 604.7233149599.

Adding to 221141443 its reverse (344141122), we get a palindrome (565282565).

The spelling of 221141443 in words is "two hundred twenty-one million, one hundred forty-one thousand, four hundred forty-three".