103221440412 has 96 divisors (see below), whose sum is σ = 256889977344. Its totient is φ = 32146329600.

The previous prime is 103221440407. The next prime is 103221440419. The reversal of 103221440412 is 214044122301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103221440419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16270113 + ... + 16276455.

It is an arithmetic number, because the mean of its divisors is an integer number (2675937264).

Almost surely, 2^103221440412 is an apocalyptic number.

103221440412 is a gapful number since it is divisible by the number (12) 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 103221440412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128444988672).

103221440412 is an abundant number, since it is smaller than the sum of its proper divisors (153668536932).

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

103221440412 is a wasteful number, since it uses less digits than its factorization.

103221440412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6939 (or 6937 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 103221440412 its reverse (214044122301), we get a palindrome (317265562713).

The spelling of 103221440412 in words is "one hundred three billion, two hundred twenty-one million, four hundred forty thousand, four hundred twelve".