21442221114 has 16 divisors (see below), whose sum is σ = 43102132128. Its totient is φ = 7111125392.

The previous prime is 21442221113. The next prime is 21442221133. The reversal of 21442221114 is 41112224412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21442221113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9069132 + ... + 9071495.

It is an arithmetic number, because the mean of its divisors is an integer number (2693883258).

Almost surely, 2^21442221114 is an apocalyptic number.

21442221114 is an abundant number, since it is smaller than the sum of its proper divisors (21659911014).

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

21442221114 is a wasteful number, since it uses less digits than its factorization.

21442221114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18140829.

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

Adding to 21442221114 its reverse (41112224412), we get a palindrome (62554445526).

It can be divided in two parts, 21442 and 221114, that added together give a triangular number (242556 = T₆₉₆).

The spelling of 21442221114 in words is "twenty-one billion, four hundred forty-two million, two hundred twenty-one thousand, one hundred fourteen".