21214144120234 has 32 divisors (see below), whose sum is σ = 37169821470096. Its totient is φ = 8990432993280.

The previous prime is 21214144120201. The next prime is 21214144120243. The reversal of 21214144120234 is 43202144141212.

It can be written as a sum of positive squares in 8 ways, for example, as 9521143353225 + 11693000767009 = 3085635^2 + 3419503^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21214144120196 and 21214144120205.

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, 585296527 + ... + 585332770.

Almost surely, 2^{21214144120234} is an apocalyptic number.

21214144120234 is a deficient number, since it is larger than the sum of its proper divisors (15955677349862).

21214144120234 is a wasteful number, since it uses less digits than its factorization.

21214144120234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170629370.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 21214144120234 its reverse (43202144141212), we get a palindrome (64416288261446).

The spelling of 21214144120234 in words is "twenty-one trillion, two hundred fourteen billion, one hundred forty-four million, one hundred twenty thousand, two hundred thirty-four".