21134018214 has 48 divisors (see below), whose sum is σ = 49515530688. Its totient is φ = 6489206016.

The previous prime is 21134018189. The next prime is 21134018249. The reversal of 21134018214 is 41281043112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 720357 + ... + 749120.

It is an arithmetic number, because the mean of its divisors is an integer number (1031573556).

Almost surely, 2^21134018214 is an apocalyptic number.

21134018214 is an abundant number, since it is smaller than the sum of its proper divisors (28381512474).

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

21134018214 is a wasteful number, since it uses less digits than its factorization.

21134018214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469549 (or 1469546 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The spelling of 21134018214 in words is "twenty-one billion, one hundred thirty-four million, eighteen thousand, two hundred fourteen".