122555231421125 has 8 divisors (see below), whose sum is σ = 152948928813720. Its totient is φ = 98044185136800.

The previous prime is 122555231420983. The next prime is 122555231421167. The reversal of 122555231421125 is 521124132555221.

It can be written as a sum of positive squares in 4 ways, for example, as 14887505215489 + 107667726205636 = 3858433^2 + 10376306^2 .

It is not a de Polignac number, because 122555231421125 - 2²⁸ = 122554962985669 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490220925560 + ... + 490220925809.

It is an arithmetic number, because the mean of its divisors is an integer number (19118616101715).

Almost surely, 2^{122555231421125} is an apocalyptic number.

It is an amenable number.

122555231421125 is a deficient number, since it is larger than the sum of its proper divisors (30393697392595).

122555231421125 is an frugal number, since it uses more digits than its factorization.

122555231421125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980441851384 (or 980441851374 counting only the distinct ones).

The product of its digits is 240000, while the sum is 41.

Adding to 122555231421125 its reverse (521124132555221), we get a palindrome (643679363976346).

The spelling of 122555231421125 in words is "one hundred twenty-two trillion, five hundred fifty-five billion, two hundred thirty-one million, four hundred twenty-one thousand, one hundred twenty-five".