221210032342 has 16 divisors (see below), whose sum is σ = 360617629680. Its totient is φ = 101160267552.

The previous prime is 221210032327. The next prime is 221210032361. The reversal of 221210032342 is 243230012122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39025048 + ... + 39030715.

It is an arithmetic number, because the mean of its divisors is an integer number (22538601855).

Almost surely, 2^221210032342 is an apocalyptic number.

221210032342 is a deficient number, since it is larger than the sum of its proper divisors (139407597338).

221210032342 is a wasteful number, since it uses less digits than its factorization.

221210032342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78055887.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 221210032342 its reverse (243230012122), we get a palindrome (464440044464).

The spelling of 221210032342 in words is "two hundred twenty-one billion, two hundred ten million, thirty-two thousand, three hundred forty-two".