122243521655566 has 8 divisors (see below), whose sum is σ = 183365337249864. Its totient is φ = 61121742572280.

The previous prime is 122243521655527. The next prime is 122243521655569. The reversal of 122243521655566 is 665556125342221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122243521655569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1913976 + ... + 15752788.

It is an arithmetic number, because the mean of its divisors is an integer number (22920667156233).

Almost surely, 2^{122243521655566} is an apocalyptic number.

122243521655566 is a deficient number, since it is larger than the sum of its proper divisors (61121815594298).

122243521655566 is a wasteful number, since it uses less digits than its factorization.

122243521655566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18255506.

The product of its digits is 25920000, while the sum is 55.

Adding to 122243521655566 its reverse (665556125342221), we get a palindrome (787799646997787).

The spelling of 122243521655566 in words is "one hundred twenty-two trillion, two hundred forty-three billion, five hundred twenty-one million, six hundred fifty-five thousand, five hundred sixty-six".