221414741 has 8 divisors (see below), whose sum is σ = 228985344. Its totient is φ = 213870960.

The previous prime is 221414731. The next prime is 221414777. The reversal of 221414741 is 147414122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221414741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221414741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221414731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10856 + ... + 23678.

It is an arithmetic number, because the mean of its divisors is an integer number (28623168).

Almost surely, 2^221414741 is an apocalyptic number.

It is an amenable number.

221414741 is a deficient number, since it is larger than the sum of its proper divisors (7570603).

221414741 is a wasteful number, since it uses less digits than its factorization.

221414741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13411.

The product of its digits is 1792, while the sum is 26.

The square root of 221414741 is about 14880.0114583289. The cubic root of 221414741 is about 604.9723284933.

Adding to 221414741 its reverse (147414122), we get a palindrome (368828863).

The spelling of 221414741 in words is "two hundred twenty-one million, four hundred fourteen thousand, seven hundred forty-one".