21234014202124 has 12 divisors (see below), whose sum is σ = 38775156369264. Its totient is φ = 10155398096624.

The previous prime is 21234014202119. The next prime is 21234014202143. The reversal of 21234014202124 is 42120241043212.

It is a super-2 number, since 2×21234014202124² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21234014202092 and 21234014202101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115402251007 + ... + 115402251190.

It is an arithmetic number, because the mean of its divisors is an integer number (3231263030772).

Almost surely, 2^{21234014202124} is an apocalyptic number.

It is an amenable number.

21234014202124 is a deficient number, since it is larger than the sum of its proper divisors (17541142167140).

21234014202124 is a wasteful number, since it uses less digits than its factorization.

21234014202124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230804502224 (or 230804502222 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 21234014202124 its reverse (42120241043212), we get a palindrome (63354255245336).

The spelling of 21234014202124 in words is "twenty-one trillion, two hundred thirty-four billion, fourteen million, two hundred two thousand, one hundred twenty-four".