21214204244034 has 32 divisors (see below), whose sum is σ = 42712350430464. Its totient is φ = 7024151879040.

The previous prime is 21214204244029. The next prime is 21214204244047. The reversal of 21214204244034 is 43044240241212.

It is a junction number, because it is equal to n+sod(n) for n = 21214204243986 and 21214204244004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8119627 + ... + 10409454.

It is an arithmetic number, because the mean of its divisors is an integer number (1334760950952).

Almost surely, 2^{21214204244034} is an apocalyptic number.

21214204244034 is an abundant number, since it is smaller than the sum of its proper divisors (21498146186430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21214204244034 is a wasteful number, since it uses less digits than its factorization.

21214204244034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18530362.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 21214204244034 its reverse (43044240241212), we get a palindrome (64258444485246).

The spelling of 21214204244034 in words is "twenty-one trillion, two hundred fourteen billion, two hundred four million, two hundred forty-four thousand, thirty-four".