221234102342 has 16 divisors (see below), whose sum is σ = 383314702032. Its totient is φ = 94645605120.

The previous prime is 221234102311. The next prime is 221234102351. The reversal of 221234102342 is 243201432122.

It is a congruent number.

It is an unprimeable number.

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, 295767143 + ... + 295767890.

It is an arithmetic number, because the mean of its divisors is an integer number (23957168877).

Almost surely, 2^221234102342 is an apocalyptic number.

221234102342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221234102342 is a deficient number, since it is larger than the sum of its proper divisors (162080599690).

221234102342 is a wasteful number, since it uses less digits than its factorization.

221234102342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591535063.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 221234102342 its reverse (243201432122), we get a palindrome (464435534464).

The spelling of 221234102342 in words is "two hundred twenty-one billion, two hundred thirty-four million, one hundred two thousand, three hundred forty-two".