122443121240 has 32 divisors (see below), whose sum is σ = 300542207760. Its totient is φ = 44524771200.

The previous prime is 122443121161. The next prime is 122443121267. The reversal of 122443121240 is 42121344221.

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, 139139471 + ... + 139140350.

Almost surely, 2^122443121240 is an apocalyptic number.

122443121240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122443121240 is an abundant number, since it is smaller than the sum of its proper divisors (178099086520).

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

122443121240 is a wasteful number, since it uses less digits than its factorization.

122443121240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278279843 (or 278279839 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 122443121240 its reverse (42121344221), we get a palindrome (164564465461).

The spelling of 122443121240 in words is "one hundred twenty-two billion, four hundred forty-three million, one hundred twenty-one thousand, two hundred forty".