122555234021243 has 4 divisors (see below), whose sum is σ = 122555259881208. Its totient is φ = 122555208161280.

The previous prime is 122555234021237. The next prime is 122555234021267. The reversal of 122555234021243 is 342120432555221.

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

It is a cyclic number.

It is not a de Polignac number, because 122555234021243 - 2⁶ = 122555234021179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122555234021243.

It is not an unprimeable number, because it can be changed into a prime (122555234024243) 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, 3555773 + ... + 16054718.

It is an arithmetic number, because the mean of its divisors is an integer number (30638814970302).

Almost surely, 2^{122555234021243} is an apocalyptic number.

122555234021243 is a deficient number, since it is larger than the sum of its proper divisors (25859965).

122555234021243 is an equidigital number, since it uses as much as digits as its factorization.

122555234021243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25859964.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 122555234021243 its reverse (342120432555221), we get a palindrome (464675666576464).

The spelling of 122555234021243 in words is "one hundred twenty-two trillion, five hundred fifty-five billion, two hundred thirty-four million, twenty-one thousand, two hundred forty-three".