21206602332014 has 32 divisors (see below), whose sum is σ = 35823151798272. Its totient is φ = 9327889116000.

The previous prime is 21206602332011. The next prime is 21206602332199. The reversal of 21206602332014 is 41023320660212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21206602332011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11293199 + ... + 13036469.

It is an arithmetic number, because the mean of its divisors is an integer number (1119473493696).

Almost surely, 2^{21206602332014} is an apocalyptic number.

21206602332014 is a deficient number, since it is larger than the sum of its proper divisors (14616549466258).

21206602332014 is a wasteful number, since it uses less digits than its factorization.

21206602332014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761152.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 21206602332014 its reverse (41023320660212), we get a palindrome (62229922992226).

The spelling of 21206602332014 in words is "twenty-one trillion, two hundred six billion, six hundred two million, three hundred thirty-two thousand, fourteen".