122144440000 has 140 divisors (see below), whose sum is σ = 330414114888. Its totient is φ = 44416000000.

The previous prime is 122144439979. The next prime is 122144440051. The reversal of 122144440000 is 44441221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 301200 + ... + 578800.

Almost surely, 2^122144440000 is an apocalyptic number.

122144440000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122144440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165207057444).

122144440000 is an abundant number, since it is smaller than the sum of its proper divisors (208269674888).

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

122144440000 is an equidigital number, since it uses as much as digits as its factorization.

122144440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277644 (or 277619 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 122144440000 its reverse (44441221), we get a palindrome (122188881221).

The spelling of 122144440000 in words is "one hundred twenty-two billion, one hundred forty-four million, four hundred forty thousand".