21214036500530 has 16 divisors (see below), whose sum is σ = 40195016527680. Its totient is φ = 8039003305392.

The previous prime is 21214036500529. The next prime is 21214036500539. The reversal of 21214036500530 is 3500563041212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21214036500539) 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, 55826411654 + ... + 55826412033.

It is an arithmetic number, because the mean of its divisors is an integer number (2512188532980).

Almost surely, 2^{21214036500530} is an apocalyptic number.

21214036500530 is a deficient number, since it is larger than the sum of its proper divisors (18980980027150).

21214036500530 is a wasteful number, since it uses less digits than its factorization.

21214036500530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111652823713.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 21214036500530 its reverse (3500563041212), we get a palindrome (24714599541742).

The spelling of 21214036500530 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, five hundred thousand, five hundred thirty".