21241214214 has 32 divisors (see below), whose sum is σ = 46349881344. Its totient is φ = 6435979680.

The previous prime is 21241214171. The next prime is 21241214233. The reversal of 21241214214 is 41241214212.

It is a happy 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, 857872 + ... + 882284.

It is an arithmetic number, because the mean of its divisors is an integer number (1448433792).

Almost surely, 2^21241214214 is an apocalyptic number.

21241214214 is an abundant number, since it is smaller than the sum of its proper divisors (25108667130).

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

21241214214 is a wasteful number, since it uses less digits than its factorization.

21241214214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37612.

The product of its digits is 1024, while the sum is 24.

Adding to 21241214214 its reverse (41241214212), we get a palindrome (62482428426).

The spelling of 21241214214 in words is "twenty-one billion, two hundred forty-one million, two hundred fourteen thousand, two hundred fourteen".