21412130022340 has 24 divisors (see below), whose sum is σ = 46180756103832. Its totient is φ = 8333369521920.

The previous prime is 21412130022331. The next prime is 21412130022341. The reversal of 21412130022340 is 4322003121412.

It can be written as a sum of positive squares in 4 ways, for example, as 3942956833344 + 17469173188996 = 1985688^2 + 4179614^2 .

It is not an unprimeable number, because it can be changed into a prime (21412130022341) 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, 14467654681 + ... + 14467656160.

It is an arithmetic number, because the mean of its divisors is an integer number (1924198170993).

Almost surely, 2^{21412130022340} is an apocalyptic number.

21412130022340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21412130022340 is an abundant number, since it is smaller than the sum of its proper divisors (24768626081492).

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

21412130022340 is a wasteful number, since it uses less digits than its factorization.

21412130022340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28935310887 (or 28935310885 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21412130022340 its reverse (4322003121412), we get a palindrome (25734133143752).

The spelling of 21412130022340 in words is "twenty-one trillion, four hundred twelve billion, one hundred thirty million, twenty-two thousand, three hundred forty".