221411342 has 4 divisors (see below), whose sum is σ = 332117016. Its totient is φ = 110705670.

The previous prime is 221411341. The next prime is 221411347. The reversal of 221411342 is 243114122.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221411341) 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 as a sum of consecutive naturals, namely, 55352834 + ... + 55352837.

It is an arithmetic number, because the mean of its divisors is an integer number (83029254).

Almost surely, 2^221411342 is an apocalyptic number.

221411342 is a deficient number, since it is larger than the sum of its proper divisors (110705674).

221411342 is a wasteful number, since it uses less digits than its factorization.

221411342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110705673.

The product of its digits is 384, while the sum is 20.

The square root of 221411342 is about 14879.8972442689. The cubic root of 221411342 is about 604.9692327773.

Adding to 221411342 its reverse (243114122), we get a palindrome (464525464).

The spelling of 221411342 in words is "two hundred twenty-one million, four hundred eleven thousand, three hundred forty-two".