21443020114 has 16 divisors (see below), whose sum is σ = 33869707200. Its totient is φ = 10153527984.

The previous prime is 21443020069. The next prime is 21443020127. The reversal of 21443020114 is 41102034412.

It is a happy number.

It is a super-2 number, since 2×21443020114² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 4819 + ... + 207145.

It is an arithmetic number, because the mean of its divisors is an integer number (2116856700).

Almost surely, 2^21443020114 is an apocalyptic number.

21443020114 is a deficient number, since it is larger than the sum of its proper divisors (12426687086).

21443020114 is a wasteful number, since it uses less digits than its factorization.

21443020114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205137.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21443020114 its reverse (41102034412), we get a palindrome (62545054526).

The spelling of 21443020114 in words is "twenty-one billion, four hundred forty-three million, twenty thousand, one hundred fourteen".