122105400342 has 32 divisors (see below), whose sum is σ = 265356395520. Its totient is φ = 37315740960.

The previous prime is 122105400301. The next prime is 122105400401. The reversal of 122105400342 is 243004501221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17272273 + ... + 17279340.

It is an arithmetic number, because the mean of its divisors is an integer number (8292387360).

Almost surely, 2^122105400342 is an apocalyptic number.

122105400342 is an abundant number, since it is smaller than the sum of its proper divisors (143250995178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122105400342 is a wasteful number, since it uses less digits than its factorization.

122105400342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34551668.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 122105400342 its reverse (243004501221), we get a palindrome (365109901563).

The spelling of 122105400342 in words is "one hundred twenty-two billion, one hundred five million, four hundred thousand, three hundred forty-two".