21444022114 has 16 divisors (see below), whose sum is σ = 32306804640. Its totient is φ = 10675181440.

The previous prime is 21444022111. The next prime is 21444022129. The reversal of 21444022114 is 41122044412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21444022111) 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, 442209 + ... + 488299.

It is an arithmetic number, because the mean of its divisors is an integer number (2019175290).

Almost surely, 2^21444022114 is an apocalyptic number.

21444022114 is a deficient number, since it is larger than the sum of its proper divisors (10862782526).

21444022114 is a wasteful number, since it uses less digits than its factorization.

21444022114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47105.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 21444022114 its reverse (41122044412), we get a palindrome (62566066526).

The spelling of 21444022114 in words is "twenty-one billion, four hundred forty-four million, twenty-two thousand, one hundred fourteen".