21214142104 has 48 divisors (see below), whose sum is σ = 43396120080. Its totient is φ = 9713272320.

The previous prime is 21214142077. The next prime is 21214142119. The reversal of 21214142104 is 40124141212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38452 + ... + 209539.

It is an arithmetic number, because the mean of its divisors is an integer number (904085835).

Almost surely, 2^21214142104 is an apocalyptic number.

It is an amenable number.

21214142104 is an abundant number, since it is smaller than the sum of its proper divisors (22181977976).

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

21214142104 is a wasteful number, since it uses less digits than its factorization.

21214142104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248068 (or 248047 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 21214142104 its reverse (40124141212), we get a palindrome (61338283316).

The spelling of 21214142104 in words is "twenty-one billion, two hundred fourteen million, one hundred forty-two thousand, one hundred four".