12421121330 has 16 divisors (see below), whose sum is σ = 22362018840. Its totient is φ = 4967559552.

The previous prime is 12421121327. The next prime is 12421121369. The reversal of 12421121330 is 3312112421.

It can be written as a sum of positive squares in 4 ways, for example, as 2108921929 + 10312199401 = 45923^2 + 101549^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50885 + ... + 165624.

Almost surely, 2^12421121330 is an apocalyptic number.

12421121330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12421121330 is a deficient number, since it is larger than the sum of its proper divisors (9940897510).

12421121330 is a wasteful number, since it uses less digits than its factorization.

12421121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222253.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12421121330 its reverse (3312112421), we get a palindrome (15733233751).

It can be divided in two parts, 124211 and 21330, that added together give a palindrome (145541).

The spelling of 12421121330 in words is "twelve billion, four hundred twenty-one million, one hundred twenty-one thousand, three hundred thirty".