221041240220422 has 4 divisors (see below), whose sum is σ = 331561860330636. Its totient is φ = 110520620110210.

The previous prime is 221041240220419. The next prime is 221041240220503. The reversal of 221041240220422 is 224022042140122.

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 (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55260310055104 + ... + 55260310055107.

It is an arithmetic number, because the mean of its divisors is an integer number (82890465082659).

Almost surely, 2^{221041240220422} is an apocalyptic number.

221041240220422 is a deficient number, since it is larger than the sum of its proper divisors (110520620110214).

221041240220422 is a wasteful number, since it uses less digits than its factorization.

221041240220422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110520620110213.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 221041240220422 its reverse (224022042140122), we get a palindrome (445063282360544).

The spelling of 221041240220422 in words is "two hundred twenty-one trillion, forty-one billion, two hundred forty million, two hundred twenty thousand, four hundred twenty-two".