21214026516326 has 32 divisors (see below), whose sum is σ = 37254698675712. Its totient is φ = 8869786136640.

The previous prime is 21214026516307. The next prime is 21214026516337. The reversal of 21214026516326 is 62361562041212.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28206575 + ... + 28948901.

It is an arithmetic number, because the mean of its divisors is an integer number (1164209333616).

Almost surely, 2^{21214026516326} is an apocalyptic number.

21214026516326 is a deficient number, since it is larger than the sum of its proper divisors (16040672159386).

21214026516326 is a wasteful number, since it uses less digits than its factorization.

21214026516326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792164.

The product of its (nonzero) digits is 207360, while the sum is 41.

Adding to 21214026516326 its reverse (62361562041212), we get a palindrome (83575588557538).

The spelling of 21214026516326 in words is "twenty-one trillion, two hundred fourteen billion, twenty-six million, five hundred sixteen thousand, three hundred twenty-six".