221241243302 has 4 divisors (see below), whose sum is σ = 331861864956. Its totient is φ = 110620621650.

The previous prime is 221241243271. The next prime is 221241243313. The reversal of 221241243302 is 203342142122.

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

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 as a sum of consecutive naturals, namely, 55310310824 + ... + 55310310827.

It is an arithmetic number, because the mean of its divisors is an integer number (82965466239).

Almost surely, 2^221241243302 is an apocalyptic number.

221241243302 is a deficient number, since it is larger than the sum of its proper divisors (110620621654).

221241243302 is a wasteful number, since it uses less digits than its factorization.

221241243302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110620621653.

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

Adding to 221241243302 its reverse (203342142122), we get a palindrome (424583385424).

The spelling of 221241243302 in words is "two hundred twenty-one billion, two hundred forty-one million, two hundred forty-three thousand, three hundred two".