21214036536050 has 48 divisors (see below), whose sum is σ = 39734241256512. Its totient is φ = 8426395857600.

The previous prime is 21214036535959. The next prime is 21214036536061. The reversal of 21214036536050 is 5063563041212.

It is a junction number, because it is equal to n+sod(n) for n = 21214036535995 and 21214036536013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3092555 + ... + 7210545.

It is an arithmetic number, because the mean of its divisors is an integer number (827796692844).

Almost surely, 2^{21214036536050} is an apocalyptic number.

21214036536050 is a deficient number, since it is larger than the sum of its proper divisors (18520204720462).

21214036536050 is a wasteful number, since it uses less digits than its factorization.

21214036536050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118723 (or 4118718 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 21214036536050 its reverse (5063563041212), we get a palindrome (26277599577262).

The spelling of 21214036536050 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, five hundred thirty-six thousand, fifty".