21444214110 has 48 divisors (see below), whose sum is σ = 56570200848. Its totient is φ = 5198596480.

The previous prime is 21444214091. The next prime is 21444214117. The reversal of 21444214110 is 1141244412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21444214117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2950119 + ... + 2957378.

It is an arithmetic number, because the mean of its divisors is an integer number (1178545851).

Almost surely, 2^21444214110 is an apocalyptic number.

21444214110 is an abundant number, since it is smaller than the sum of its proper divisors (35125986738).

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

21444214110 is a wasteful number, since it uses less digits than its factorization.

21444214110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5907529 (or 5907518 counting only the distinct ones).

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

Adding to 21444214110 its reverse (1141244412), we get a palindrome (22585458522).

The spelling of 21444214110 in words is "twenty-one billion, four hundred forty-four million, two hundred fourteen thousand, one hundred ten".