122221022144 has 56 divisors (see below), whose sum is σ = 274935482640. Its totient is φ = 53440763904.

The previous prime is 122221022117. The next prime is 122221022149. The reversal of 122221022144 is 441220122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221022149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3849989 + ... + 3881604.

It is an arithmetic number, because the mean of its divisors is an integer number (4909562190).

Almost surely, 2^122221022144 is an apocalyptic number.

It is an amenable number.

122221022144 is an abundant number, since it is smaller than the sum of its proper divisors (152714460496).

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

122221022144 is a wasteful number, since it uses less digits than its factorization.

122221022144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731637 (or 7731627 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 122221022144 its reverse (441220122221), we get a palindrome (563441144365).

The spelling of 122221022144 in words is "one hundred twenty-two billion, two hundred twenty-one million, twenty-two thousand, one hundred forty-four".