122443142140 has 48 divisors (see below), whose sum is σ = 283885741440. Its totient is φ = 43988329280.

The previous prime is 122443142113. The next prime is 122443142179. The reversal of 122443142140 is 41241344221.

It is a junction number, because it is equal to n+sod(n) for n = 122443142099 and 122443142108.

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, 3334510 + ... + 3371029.

It is an arithmetic number, because the mean of its divisors is an integer number (5914286280).

Almost surely, 2^122443142140 is an apocalyptic number.

122443142140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122443142140 is an abundant number, since it is smaller than the sum of its proper divisors (161442599300).

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

122443142140 is a wasteful number, since it uses less digits than its factorization.

122443142140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705642 (or 6705640 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 122443142140 its reverse (41241344221), we get a palindrome (163684486361).

The spelling of 122443142140 in words is "one hundred twenty-two billion, four hundred forty-three million, one hundred forty-two thousand, one hundred forty".