21014211360 has 384 divisors, whose sum is σ = 72242150400. Its totient is φ = 5114363904.

The previous prime is 21014211353. The next prime is 21014211371. The reversal of 21014211360 is 6311241012.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60212466 + ... + 60212814.

It is an arithmetic number, because the mean of its divisors is an integer number (188130600).

Almost surely, 2^21014211360 is an apocalyptic number.

21014211360 is a gapful number since it is divisible by the number (20) 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 21014211360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36121075200).

21014211360 is an abundant number, since it is smaller than the sum of its proper divisors (51227939040).

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

21014211360 is a wasteful number, since it uses less digits than its factorization.

21014211360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21014211360 its reverse (6311241012), we get a palindrome (27325452372).

The spelling of 21014211360 in words is "twenty-one billion, fourteen million, two hundred eleven thousand, three hundred sixty".