122203324144 has 160 divisors (see below), whose sum is σ = 276732288000. Its totient is φ = 51663237120.

The previous prime is 122203324129. The next prime is 122203324171. The reversal of 122203324144 is 441423302221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99432522 + ... + 99433750.

It is an arithmetic number, because the mean of its divisors is an integer number (1729576800).

Almost surely, 2^122203324144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122203324144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138366144000).

122203324144 is an abundant number, since it is smaller than the sum of its proper divisors (154528963856).

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

122203324144 is a wasteful number, since it uses less digits than its factorization.

122203324144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631 (or 1625 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 122203324144 its reverse (441423302221), we get a palindrome (563626626365).

The spelling of 122203324144 in words is "one hundred twenty-two billion, two hundred three million, three hundred twenty-four thousand, one hundred forty-four".