122555342324221 has 64 divisors (see below), whose sum is σ = 134719764480000. Its totient is φ = 111058217994240.

The previous prime is 122555342324117. The next prime is 122555342324227. The reversal of 122555342324221 is 122423243555221.

It is a cyclic number.

It is not a de Polignac number, because 122555342324221 - 2²³ = 122555333935613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122555342324227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46090762990 + ... + 46090765648.

It is an arithmetic number, because the mean of its divisors is an integer number (2104996320000).

Almost surely, 2^{122555342324221} is an apocalyptic number.

It is an amenable number.

122555342324221 is a deficient number, since it is larger than the sum of its proper divisors (12164422155779).

122555342324221 is a wasteful number, since it uses less digits than its factorization.

122555342324221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5354.

The product of its digits is 1152000, while the sum is 43.

Adding to 122555342324221 its reverse (122423243555221), we get a palindrome (244978585879442).

The spelling of 122555342324221 in words is "one hundred twenty-two trillion, five hundred fifty-five billion, three hundred forty-two million, three hundred twenty-four thousand, two hundred twenty-one".