21424211242412 has 24 divisors (see below), whose sum is σ = 40951199497152. Its totient is φ = 9726270080400.

The previous prime is 21424211242409. The next prime is 21424211242417.

21424211242412 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (21424211242417) 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, 300157838 + ... + 300229205.

It is an arithmetic number, because the mean of its divisors is an integer number (1706299979048).

Almost surely, 2^{21424211242412} is an apocalyptic number.

21424211242412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21424211242412 is a deficient number, since it is larger than the sum of its proper divisors (19526988254740).

21424211242412 is a wasteful number, since it uses less digits than its factorization.

21424211242412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600387869 (or 600387867 counting only the distinct ones).

The product of its digits is 16384, while the sum is 32.

It can be divided in two parts, 2142421 and 1242412, that added together give a palindrome (3384833).

The spelling of 21424211242412 in words is "twenty-one trillion, four hundred twenty-four billion, two hundred eleven million, two hundred forty-two thousand, four hundred twelve".