21302014412 has 144 divisors (see below), whose sum is σ = 45586050048. Its totient is φ = 8677186560.

The previous prime is 21302014379. The next prime is 21302014417. The reversal of 21302014412 is 21441020312.

It is not an unprimeable number, because it can be changed into a prime (21302014417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58043453 + ... + 58043819.

It is an arithmetic number, because the mean of its divisors is an integer number (316569792).

Almost surely, 2^21302014412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21302014412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22793025024).

21302014412 is an abundant number, since it is smaller than the sum of its proper divisors (24284035636).

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

21302014412 is a wasteful number, since it uses less digits than its factorization.

21302014412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21302014412 its reverse (21441020312), we get a palindrome (42743034724).

The spelling of 21302014412 in words is "twenty-one billion, three hundred two million, fourteen thousand, four hundred twelve".