123221441242 has 32 divisors (see below), whose sum is σ = 187796568960. Its totient is φ = 60631744320.

The previous prime is 123221441201. The next prime is 123221441257. The reversal of 123221441242 is 242144122321.

It is a self number, because there is not a number n which added to its sum of digits gives 123221441242.

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, 19861713 + ... + 19867915.

It is an arithmetic number, because the mean of its divisors is an integer number (5868642780).

Almost surely, 2^123221441242 is an apocalyptic number.

123221441242 is a deficient number, since it is larger than the sum of its proper divisors (64575127718).

123221441242 is a wasteful number, since it uses less digits than its factorization.

123221441242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6918.

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

Adding to 123221441242 its reverse (242144122321), we get a palindrome (365365563563).

The spelling of 123221441242 in words is "one hundred twenty-three billion, two hundred twenty-one million, four hundred forty-one thousand, two hundred forty-two".