221334141 has 16 divisors (see below), whose sum is σ = 348151808. Its totient is φ = 122396400.

The previous prime is 221334121. The next prime is 221334161. The reversal of 221334141 is 141433122.

It is an interprime number because it is at equal distance from previous prime (221334121) and next prime (221334161).

It is not a de Polignac number, because 221334141 - 2⁵ = 221334109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221334121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169345 + ... + 170646.

It is an arithmetic number, because the mean of its divisors is an integer number (21759488).

Almost surely, 2^221334141 is an apocalyptic number.

221334141 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

221334141 is a deficient number, since it is larger than the sum of its proper divisors (126817667).

221334141 is a wasteful number, since it uses less digits than its factorization.

221334141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340032.

The product of its digits is 576, while the sum is 21.

The square root of 221334141 is about 14877.3028805627. The cubic root of 221334141 is about 604.8989116898.

Adding to 221334141 its reverse (141433122), we get a palindrome (362767263).

The spelling of 221334141 in words is "two hundred twenty-one million, three hundred thirty-four thousand, one hundred forty-one".